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The families of flowering plants.                                                                                                                                                                

Scrophulariaceae Juss.

                        

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IncludingAntirrhineae (Antirrhinaceae) DC. & Duby, Aragoaceae D. Don, Cheloneae (Chelonaceae) Augier ex Martinov, Calceolariaceae,Diditalaceae Augier ex Martinov, Hebenstreitiaceae Horan.,Limoselleae (Limosellaceae) J.G. Agardh, Linderniaceae Borsch, K. Müll.bis & Fisch, Melampyraceae Lindl., Oftiaceae,Paulowniaceae Nak., Pediculares (Pedicularidaceae) Juss., Personaceae Dulac, Rhinanthoideae (Rhinanthaceae) Vent., Schlegeliaceae Reveal, Selaginaceae Choisy, Sibthorpiaceae D. Don, Verbascaceae Nees, Veronicaceae Rafin.Excluding Ellisiophyllaceae, Orobanchaceae

Habit and leaf form. Shrubs and herbs (mostly), or trees, or lianas; non-laticiferous and without coloured juice. Leaves well developed (usually), or much reduced (e.g. the parasitic Harveya, Hyobanche), or absent (?). Plants succulent (somewhat, in Bacopa, Lindernia), or non-succulent; partially parasitic (commonly, concentrated in the Rhinantheae), or autotrophic. Parasitic on roots of the host (when parasitic). Annual, or biennial, or perennial; with a basal aggregation of leaves, or with neither basal nor terminal aggregations of leaves, or with terminal aggregations of leaves (e.g. sometimes in Peplidium). Climbing (sometimes), or self supporting (mainly); the climbers stem twiners, or petiole twiners. Hydrophytic (e.g. ‘Ambulia’, = Limnophila), or helophytic, or mesophytic, or xerophytic (e.g. the ericoid Selagineae); when hydrophytic, rooted. Leaves of aquatics submerged, or emergent, or floating. Heterophyllous (e.g. Hebe,Hydrotriche), or not heterophyllous. Leaves alternate, or opposite, or whorled; when alternate spiral, or four-ranked; ‘herbaceous’, or leathery, or fleshy (rarely), or membranous (rarely); petiolate to sessile, or perfoliate (occasionally); connate (occasionally?), or not connate (usually); sheathing, or non-sheathing; simple; epulvinate. Lamina dissected, or entire; if dissected pinnatifid, or palmatifid, or much-divided (e.g. submerged leaves in Hydrotriche,Limnophila); pinnately veined, or palmately veined. Leaves exstipulate. Lamina margins entire, or crenate, or serrate, or dentate. Leaves without a persistent basal meristem.

Leaf anatomy. Hydathodes present (occasionally), or absent. Stomata present; mainly confined to one surface, or on both surfaces; anomocytic, or anisocytic.

Adaxial hypodermis present (rarely), or absent. Lamina dorsiventral, or isobilateral. Cystoliths present (occasionally), or absent. Minor leaf veins with phloem transfer cells (9 genera, e.g. Antirrhinum, Rhinanthus), or without phloem transfer cells (16 genera, e.g. Pedicularis, Scrophularia,Verbascum).

Stem anatomy. Cork cambium present, or absent; initially when present. deep-seated, or superficial. Nodes unilacunar. Primary vascular tissue usually in a cylinder, without separate bundles; centrifugal. Internal phloem absent. Secondary thickening developing from a conventional cambial ring. Xylem with fibre tracheids, or without fibre tracheids; with libriform fibres, or without libriform fibres; with vessels. Vessel end-walls simple. Vessels without vestured pits. Wood partially storied (VPI, Penstemon), or not storied; parenchyma if present, apotracheal, or paratracheal (usually very sparse or absent). Sieve-tube plastids S-type. Pith with diaphragms, or without diaphragms.

Reproductive type, pollination. Unisexual flowersabsent. Plants hermaphrodite. Pollination entomophilous; mechanism conspicuously specialized (with loose-pollen mechanisms), or unspecialized.

Inflorescence, floral, fruit and seed morphology. Flowers solitary, or aggregated in ‘inflorescences’; in cymes, in racemes, in spikes, in heads, and in panicles. The ultimate inflorescence unit cymose, or racemose. Inflorescences terminal, or axillary; mainly racemes, spikes and thyrses, terminal peloric flowers common. Flowers bracteate, or ebracteate; bracteolate, or ebracteolate; minute, or small to medium-sized (mostly), or large; very irregular (usually — apart from peloric terminal flowers), or somewhat irregular (e.g. Verbascum, Bacopa, Elacholoma); resupinate (e.g. in Lindernia hypandra), or not resupinate (usually). The floral irregularity involving the perianth and involving the androecium, or involving the androecium. Flowers neither papilionaceous nor pseudo-papilionaceous; cyclic; tetracyclic. Free hypanthium absent.Hypogynous disk present.

Perianthwith distinct calyx and corolla; (6–)8–10(–13); 2 whorled; isomerous, or anisomerous. Calyx 4 (the posterior member missing, or the anterior pair united), or 5, or 2 (e.g. Dischisma); 1 whorled; gamosepalous (usually), or polysepalous (Dischisma, Bacopa); blunt-lobed, or toothed, or entire (sometimes, in Centranthera); unequal but not bilabiate, or bilabiate, or regular; persistent; imbricate, or valvate; when K5, with the median member posterior. Corolla 4 (the posterior pair united), or 5(–8), or 3 (sometimes, in Glossostigma); 1 whorled; appendiculate (e.g. with flaps covering the anthers, in Lindernia), or not appendiculate; gamopetalous; imbricate, or valvate; more or less bilabiate (usually), or unequal but not bilabiate (e.g. Dischisma, where the upper lip is four-lobed and the lower lip is suppressed), or regular (more or less, in Verbascum, etc.); spurred (sometimes), or not spurred;not fleshy; persistent, or deciduous.

Androecium (4–)5 (posterior member sometimes missing), or 2(–3) (sometimes the lower pair reduced or missing). Androecial members adnate (to the corolla); usually markedly unequal; free of one another, or coherent (via the anthers, in Centranthera,Cymbalaria, Elacholoma etc.); 1 whorled. Androecium exclusively of fertile stamens, or including staminodes. Staminodes when present 1 (the posterior member), or 2–3; in the same series as the fertile stamens; representing the posterior median member, or the posterior median member and the posterior-lateral pair. Fertile stamens representing the posterior-lateral pair and the anterior-lateral pair (usually), or the posterior-lateral pair (?), or the anterior-lateral pair, or the posterior median member, the posterior-lateral pair, and the anterior-lateral pair. Stamens (2–)4(–5); inserted near the base of the corolla tube, or midway down the corolla tube, or in the throat of the corolla tube; didynamous (usually), or not didynamous, not tetradynamous; reduced in number relative to the adjacent perianth, or isomerous with the perianth; oppositisepalous; alternating with the corolla members. Filaments appendiculate (sometimes spurred, in Lindernia), or not appendiculate. Anthers cohering, or connivent (in pairs), or separate from one another; dehiscing via pores (Bartsia, some Euphrasia spp.), or dehiscing via longitudinal slits; introrse; unilocular (Selagineae, according to Hutchinson), or bilocular (usually); bisporangiate (e.g. Jamesbrittenia), or tetrasporangiate (usually); unappendaged. Endothecium developing fibrous thickenings. Anther epidermis persistent. Microsporogenesis simultaneous. The initial microspore tetrads tetrahedral, or isobilateral, or decussate. Anther wall initially with one middle layer, or initially with more than one middle layer (1 or 2); of the ‘dicot’ type. Tapetum glandular. Pollen grains aperturate; 2–7 aperturate; colporate (commonly, or colporoidate), or colpate; 2-celled (in 19 genera).

Gynoecium 2(–3) carpelled. The pistil 2(–3) celled. Gynoecium syncarpous; synstylovarious to eu-syncarpous; superior. Ovary 2(–3) locular. Locules without ‘false septa’. Gynoecium median; stylate. Styles 1; without an indusium; attenuate from the ovary, or from a depression at the top of the ovary; apical. Stigmas 1, or 2; 1–2 lobed; wet type, or dry type; papillate; Group II type and Group III type. Placentationaxile, or apical (Selagineae). Ovules 1 per locule (Selagineae), or 2–50 per locule (i.e. to ‘many’); pendulous to ascending, or pendulous (Selagineae); non-arillate; anatropous, or campylotropous, or hemianatropous; unitegmic; tenuinucellate. Endothelium differentiated. Embryo-sac development Polygonum-type, or Allium-type, or Drusa-type. Polar nuclei fusing prior to fertilization. Antipodal cells formed; 2 (Mimulus, one being binucleate), or 3; not proliferating; ephemeral to persistent. Synergids pear-shaped, or hooked. Hypostase present, or absent. Endosperm formation cellular. Endosperm haustoria present (usually), or absent; when developed, chalazal and micropylar (usually), or chalazal, or micropylar. Embryogeny onagrad, or solanad.

Fruit non-fleshy (usually), or fleshy (rarely); dehiscent (usually), or indehiscent (rarely), or a schizocarp (Selagineae, Lagotis). Mericarps when schizocarpic, 2, or 1 (one often sterile or obsolete in Selagineae). Fruitwhen non-schizocarpic, i.e. usually, a capsule (usually), or a berry, or capsular-indehiscent (e.g. sometimes in Kickxia). Capsules septicidal (usually), or loculicidal, or poricidal (occasionally), or circumscissile, or splitting irregularly. Seeds endospermic. Endosperm oily. Seedsminute, or small; not conspicuously hairy; winged, or wingless (often angled); without amyloid. Embryo usually well differentiated. Cotyledons 2. Embryo chlorophyllous (3/3), or achlorophyllous (12/26); straight to curved.

Seedling.Germination phanerocotylar.

Physiology, biochemistry. Cyanogenic (rarely), or not cyanogenic. Cynogenic constituents phenylalanine-derived. Alkaloids present, or absent (mostly). Iridoids detected (commonly, including Selagineae); ‘Route I’ type (doubtfully, normal), or ‘Route II’ type (normal and decarb.). Arthroquinones detected (3 genera); derived from shikimic acid. Verbascosides detected (14 genera). Cornoside detected (4 genera). Proanthocyanidins absent. Flavonols to all intents and purposes, absent. Ellagic acid absent (13 species, 9 genera). Saponins/sapogenins present, or absent. Aluminium accumulation not found. Sugars transported as oligosaccharides + sucrose (in Paulownia). C3 and C4. C3 physiology recorded directly in Agalinis, Antirrhinum, Castilleja,Gratiola, Linaria, Lindenbergia, Mimulus, Orthocarpus,Pentstemon. C4 physiology recorded directly in Anticharis. Anatomy non-C4 type (Agalinis, Castilleja, Gratiola, Limnophila, Linaria,Orthocarpus, Penstemon, Scrophularia).

Peculiar feature. The funicles not as in Acanthaceae.

Geography, cytology. Frigid zone to tropical. Cosmopolitan. X = 6 (or more).

Taxonomy.Subclass Dicotyledonae; Tenuinucelli. Dahlgren’s Superorder Lamiiflorae; Scrophulariales. Cronquist’s Subclass Asteridae; Scrophulariales. APG 3 core angiosperms; core eudicot; Superorder Asteranae; lamiid; Order Lamiales.

Species 3000. Genera about 280; Acanthorrhinum, Achetaria, Adenosma,Agalinis, Agathelpis, Albraunia, Alectra, Allocalyx,Alonsoa, Amalophyllon, Amphianthus, Amphiolanthus, Anarrhinum,Anastrabe, Angelonia, Antherothamnus, Anticharis, Antirrhinum,Aptosimum, Aragoa, Artanema, Asarina, Auriolaria,Bacopa, Bampsia, Bartsia, Basistemon, Baumia,Benjaminia, Besseya, Bowkeria, Brachystigma, Brandisia,Brookea, Bryodes, Buchnera, Bungea, Buttonia,Bythophyton, Calceolaria, Camptoloma, Campylanthus,Capraria, Castilleja, Celsia (= Verbascum), Centranthera,Centrantheropsis, Chaenorhinum, Charadrophila, Cheilophyllum,Chelone, Chenopodiopsis, Chionohebe, Chionophila, Clevelandia,Cochlidiosperma, Collinsia, Colpias, Conobea, Cordylanthus,Craterostigma, Crepidorhopalon, Cromidon, Cycniopsis,Cycnium, Cymbalaria, Cyrtandromoea, Dasistoma, Deinostema,Dermatobotrys, Detzneria, Diascia, Diclis, Digitalis,Dintera, Diplacus, Dischisma, Dizygostemon, Dodartia,Dopatrium, Elacholoma, Encopella, Epixiphium, Eremogeton (or Myoporaceae), Erinus, Escobedia, Esterhazya, Euphrasia,Faxonanthus (or Myoporaceae), Fonkia, Freylinia, Galvezia,Gambelia, Geochorda, Gerardia, Gerardiina, Ghikaea,Glekia, Globulariopsis, Glossostigma, Glumicalyx, Gosela,Graderia, Gratiola, Halleria, Harveya, Hebe,Hebenstretia, Hedbergia, Hemianthus, Hemiarrhena, Hemimeris,Hemiphragma, Hiernia, Holmgrenanthe, Holzneria, Howelliella,Hydranthelium, Hydrotriche, Hygea (or Gesneriaceae),Hyobanche, Ildefonsia, Isoplexis, Ixianthes, Jamesbrittenia,Jerdonia (or Gesneriaceae), Jovellana, Kashmiria, Keckiella,Kickxia, Lafuentea, Lagotis, Lamourouxia, Lancea,Legazpia, Leptorhabdos, Leucocarpus, Leucophyllum (or Myoporaceae), Leucosalpa, Leucospora, Limnophila,Limosella, Linaria, Lindenbergia, Lindernia, Lophospermum,Lyperia, Mabrya, Macranthera, Maeviella, Magdalenaea,Manulea, Manuleopsis, Maurandella, Maurandya, Mazus,Mecardonia, Melampyrum, Melanospermum, Melasma, Melosperma,Micranthemum, Micrargeria, Micrargeriella, Microcarpaea,Microdon, Mimetanthe, Mimulicalyx, Mimulus, Misopates,Mohavea, Monochasma, Monopera, Monttea, Moscheovia,Nemation, Nathaliella, Nemesia, Neogaerrhinum, Neopicrorhiza,Nothochelone, Nothochilus, Nuttallanthus, Odicardis,Odontites, Oftia (or Myoporaceae), Omphalotrix, Ophiocephalus,Oreosolen, Orthocarpus, Otacanthus, Ourisia, Paederota,Paederotella, Parahebe, Parastriga, Parentucellia, Paulownia,Pedicularis, Peliostomum, Pennelianthus, Penstemon,Peplidium, Ptheirospermum, Phygelius, Phyllopodium,Physocalyx, Picria, Picrorhiza, Pierranthus, Polycarena,Porodittia, Psammetes, Pseudobartsia, Pseudolysimachion,Pseudomelasma, Pseudorontiuim, Pseudosopubia, Pseudostriga,Radamaea, Rehmannia, Rhamphicarpa, Raphispermum, Rhinanthus,Rhodochiton, Rhynchocorys, Russelia, Sairocarpus, Schistophragma,Achizosepala, Schizotorenia, Schlegelia, Schwalbea,Schweinfurthia, Scolophyllum, Scoparia, Scrofella, Scrophularia,Selago, Seymeria, Seymeriopsis, Shiuyinghua, Sibthorpia,Silviella, Siphonostegia, Sopubia, Spirostegia, Stemodia,Stemodiopsis, Striga, Strigina, Strobilopsis, Sutera,Synthyris, Teedia, Tetranema, Tetraselago, Tetraspidium,Tetraulacium, Thunbergianus, Tonella, Torenia, Tozzia,Triaenophora, Trieena, Triphysaria, Trungboa, Tuerckheimocharis,Uroskinnera, Vellosiella, Verbascum, Veronica, Veronicastrum,Walafrida, Wightia, Wulfenia, Wulfeniopsis, Xizangia,Xilocalyx, Zaluzianska.

General remarks. For discussion of classificatory problems posed by Scrophulariaceae, impinging on Bignoniaceae, Buddlejaceae, Callitrichaceae, Plantaginaceae,Hippuridaceae, Lentibulariaceae, and Hydrostachydaceae, and such problem genera as Paulownia and Schlegelia, see Olmstead and Reeves (1995), who provide preliminary insights from chloroplast gene sequencing. The implication is that the traditional family Scrophulariaceae comprises two distinct clades, involving numerous other small families; but the question needs pursuing in terms of a much larger sample of genera before practical implementation would be justifiable or feasible. Evidence is accumulating that the Rhinanthoideae should be referred to Orobanchaceae.

Economic uses, etc. Many are poisonous, a few are (e.g. Digitalis) or have been officinal, Halleria has edible fruit (umbinza). Many constitute important ornamentals, and Limnophila (‘Ambulia’) is valuable in aquaria.

 Illustrations:

  • Technical details: Antirrhinum. 
  • Technical details: Digitalis, Linaria, Paulownia.
  • Technical details: Veronica, Scrophularia.
  • Technical details: Verbascum.
  • Technical details: Selago, Hebenstretia. 
  • Technical details: Selago (Lindley).
  • Technical details: Sutera (Thonner).
  • Antirrhinum majus: Eng. Bot. 953 (1866).
  • Aptosimum depressum: Bot. Reg. 1882 (1836).
  • Bartsia alpina: Eng. Bot. 995 (1866).
  • Calceolaria pinnata: Bot. Mag. 2, 1788.
  • Calceolaria polifolia: Bot. Reg. 1711, 1835.
  • Cymbalaria muralis: as Linaria cymbalaria, Eng. Bot. 955 (1866).
  • Digitalis purpurea: Eng. Bot. 952 (1866).
  • Digitalis purpurea: J. E. Sowerby, 1861.
  • Euphrasia officinalis agg.: Eng. Bot. 991 (1866).
  • Kickxia elatine: as Linaria elatina, Eng. Bot. 956 (1866).
  • Kickxia spuria: as Linaria spuria, Eng. Bot. 957 (1866).
  • Linaria pelesseriana: Eng. Bot. 959 (1866).
  • Linaria purpurea: Eng. Bot. 960 (1866).
  • Linaria repens: Eng. Bot. 961 (1866).
  • Linaria supina: Eng. Bot. 958 (1866).
  • Linaria vulgaris: Eng. Bot. 962 (1866).
  • Maurandia erubescens: as Lophospermum erubescens, Bot. Reg. 1381, 1830. 
  • Melampyrum arvense: Eng. Bot. 1001 (1866).
  • Melampyrum cristatum: Eng. Bot. 1000 (1866).
  • Melampyrum sylvaticum: Eng. Bot. 1005 (1866).
  • Mimulus luteus: Eng. Bot. 967 (1866).
  • Misopates orontium: as Antirrhinum orontium, Eng. Bot. 954 (1866).
  • Nemesia floribunda: Bot. Reg. XXIV, 39 (1838). 
  • Odontites vernus: as Bartsia odontites, Eng. Bot. 993 (1866).
  • Parahebe perfoliata: as Veronica perfoliata, Bot. Reg. 1930, 1837.
  • Parentucellia viscosa: as Bartsia viscosa, Eng. Bot. 994 (1866).
  • Pedicularis palustris: Eng. Bot. 996 (1866).
  • Pedicularis sylvatica: Eng. Bot. 997 (1866).
  • Penstemon fruticosus var. crassifolius: as P. crassifolius, Bot. Reg. XXIV, 16 (1838).
  • Penstemon hartwegii: as P. gentianoides, Bot. Reg. XXIV, 3 (1838).
  • Penstemon scouleri: Bot. Reg. 1277, 1829.
  • Penstemon barbatum var. carneus: Bot. Reg. 1839, 21.
  • Rehmannia glutinosa: as R. chinensis, Bot. Reg. 1960, 1837.
  • Rhinanthus minor: Eng. Bot. 998 (1866).
  • Rhinanthus serotinus ssp. apterus: as R. major, Eng. Bot. 999 (1866).
  • Rhodochiton atrosanguineum: as R. volubile, Bot. Reg. 1755, 1836.
  • Russelia juncea: Bot. Reg. 1773, 1836.
  • Scrophularia auriculata: as S. aquatica, Eng. Bot. 947 (1866).
  • Scrophularia nodosa: Eng. Bot. 949 (1866).
  • Scrophularia scorodonia: Eng. Bot. 950 (1866).
  • Scrophularia umbrosa: as S. ehrharti, Eng. Bot. 948 (1866).
  • Scrophularia vernalis: Eng. Bot. 951 (1866).
  • Sibthorpia europaea: Eng. Bot. 969 (1866).
  • Tetranema mexicanum: Bot. Reg. 29 (52), 1843.
  • Verbascum nigrum: Eng. Bot. 940 (1866).
  • Verbascum thapsus: Eng. Bot. 937 (1866).
  • Verbascum virgatum: Eng. Bot. 941 (1866). 
  • Veronica agrestis: Eng. Bot. 972 (1866).
  • Veronica beccabunga: Eng. Bot. 990 (1866).
  • Veronica chamaedrys: Eng. Bot. 986 (1866).
  • Veronica fruticans: as V. saxatilis, Eng. Bot. 981 (1866).
  • Veronica officinalis: Eng. Bot. 984 (1866).
  • Veronica persica:as V. buxbaumii, Eng. Bot. 973 (1866).
  • Veronica serpyllifolia: Eng. Bot. 978 (1866).
  • Verbascum, Linaria, Kickxia, Cymbalaria (B. Ent. compilation).
  • British Digitalis, Scrophularia, Veronica (B. Ent. compilation).
  • British Pedicularis, Melampyrum (B. Ent. compilation).
  • British Rhinanthus, Euphrasia, Parentucellia, Odontites (B. Ent. compilation).
  • Mesopates orontium (B. Ent.).
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