COHOETS AND OEDEES. (BY THE EDITOE.) 



1009 



1, often dilated below the usually 2-fid 

 stigma; ovules many. Fruit -and seeds 

 various. — Trees or shrubs, rarely herbs, often 

 climbing; juice milky; leaves opposite or 

 whorled (rarely alternate) ; stipules or of 



cilia 548 



146. AscLEPiABE^. Corolla-lobes 6, 

 usuall}' contorted. Stamens usually cohering 

 in a crown, and clasping the top of the short 

 style; anther-cells 2-4; pollen agglutinated 

 in waxy masses, those of the adjacent anthers 

 often united in pairs. Ovary of 2 free 

 carpels ; stigmas 2, connate ; ovules ' many. 

 Fruit of 1 or 2 follicles. Seeds often comose. 

 — Trees or shrubs, often climbing; leaves 

 opposite, rarely whorled alternate or obsolete, 

 exstipulate 651 



146. LoGANiACEiE. Corolla-lolses 6-10, 

 valvate imbricate or contorted. Stiimens as 

 many as the corolla-lobes, and opposite them 

 when 10, alternate when 5. Ovary 2-4- 

 celled; cells l-oo -ovuled. Fruit various. 

 Seed albuminous. — Trees or shrubs ; leaves 

 opposite, stipulate or with dilated petioles . 555 



147. GENTiANBiE. CoroUa - lobes con- 

 torted valvate or induplicate. Stamens as 

 inany as the corolla-lobes, alternate with 

 them. Ovary 1- rarely sub-2-celled ; pla- 

 centas parietal; ovules many, horizontal. 

 Capsule septicidal. Seeds small, albuminous. 

 — Glabrous herbs, rarely shrubby below; 

 leaves opposite or whorled, quite entire, 

 exstipulate (alternate and 3-foliolate in 

 Menyuntheix) 558 



Cohort XXIII. Polemoniales. — ^CoroUa hypogynous, monopetalous, regalar. Stamens 

 as many as the corolla-lgbes., and inserted on the tube ; filaments usually exsertad. Ovary 

 1-5-celled, syncarpous (except DicTiondrece and Nolanece) ; cells 1—2- very rarely oo -ovuled. 

 Embryo albuminous. — Herbs, rarely shrubby below ; leaves alternate or 0, exstipulate. 



148. Hydrophtlleje. Corolla on a 

 hypogynous disk ; lobes 5, Imbricate. Sta- 

 mens 5, inserted at the base of the corolla- 

 tube ; filaments slender, exserted, often 

 appendaged at the base. Ovai-y 1-2-c.elled ; 

 style slender, 2-tid; o.vules 2 or more on 

 each of 2 placentas. Capsule 2-valved; 

 embryo straight, in cartilaginous albumen. — 

 Herbs ; juice watery 560 



149. Htdholeaceje. Corolla hypogynous; 

 lobes 5, imbricate. Stamens inserted on the 

 corolla-tube ; filaments slender, exserted. 

 Disk 0. Ovary 1-2-ceUed; styles 2, distinct ; 

 ovules many. Ca.psule 2-valved. Seeds 

 minute ; embryo straigiht in scanty albumen. 

 —Herbs ....... 661 



150. PoLEMpNiACEiB. OoroUa hypogy- 

 nous ; lobes 5, contorted. Stamens inserted 

 on the middle or top of the corolla-tube; 

 filaments exserted, sometimes unequal. Disk 

 glandular. Ovary 3-5-celled ; style 3-6rfld ; 

 ovules solitary and erect, or many ^-seriate 

 and ascending. Capsule 3-5-valved. Embryo 

 straight, in fleshy albumen. — Herbs, rarely, 

 undershrubs ; leaves alterng,te., or the lower 

 opposite ; 563 



151. CoisrvoLVT7i,ACEj!!. CoroUa-lobes 5, 

 contorted. Stamens inserted at the base of 



the eorolla--tube ; filaments included or ex- 

 serted, equal or unequal. Disk usually 

 annular. Ovary 1-4-celled, syncarpous ; 

 style usually slender; ovules 1-2 in each 

 cell, basal, erect. Capsule (rarely a berry) 

 1-4-celled. Embryo curved, with crumpled 

 rCOtyledons and scanty mucilaginous albumen. 

 — Herbs, usually twining, rarely shrubs; 

 juice often mUky 565 



152. DiCHOirnEBJS. Corolla-lobes 5, val- 

 vate. Stamens inserted on the corolla. 

 Ovary apocarpous ; carpels 2-4, 2-ovuled ; 

 styles basal ; ovules erect. Utricles 2, 1- 

 seeded. Embryo curved ; cotyledons crum- 

 pled, in scanty albumen. — Small herbs, erect 



or prostrate 567 



153. CpscpTjB^. Corolla-lobes 4-5. Sta- 

 mens inserted on the corolla-tube, with often 

 as many fimbriate scales below their in- 

 sertion, included. Disk 0. Ovary 2-celled ; 

 styles 2, free or connate ; ovules 2, erect in 

 each cell. Capsule 2-celled, circumsciss at 

 the base. Embryo spiral, in copious fleshy 

 albumen. — Leafless parasitic filiform twining 

 herbs 668 



154. BoKEAeiNEJB. Corolla- lobes 4r-6, 

 imbricate. Stamens often conniving into a 

 tube around the style, sometimes cohering 



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