94 xcvii. GENHANACE^:. (C.B.Clarke.) [Cotylanthera. 



below ; anthers oblong. Disc of 5 glands at the base of the ovary or 0. Ovary 

 superior, 1-celled, or rarely only the placentae intruded and meeting j style short 

 or linear, simple, stigmas 2 small ; ovules numerous. Capsule membranous, 

 rarely fleshy and berried. Seeds numerous, small, sometimes winged ; albumen 

 copious. Species 520, throughout the globe, more abundant in mountainous 

 regions. 



TRIBE I. Exaceae. Leaves opposite. , Corolla-lobes twisted to the right. 

 Ovary completely 2-celled. Style filiform. 



Leafless parasites, anthers dehiscing by terminal pores ... 1. COTYLANTHERA. 



Corolla blue, purplish or white 2. KXATM. 



Corolla yellow, anthers dehiscing by longitudinal slits ... 3. SEBJEA. 



TRIBE II. Chironieae. Leaves opposite. Corolla-lobes twisted to the 

 right. Ovary 1-celled. Style filiform. 



Ilowers regular in axillary clusters 5. ENICOSTEMA. 



Flowers regular panicled or terminal subcapitate 6. ERYTHR^EA. 



Flower irregular, stigma scarcely divided, minute herbs ... 4. HOPPEA. 



Flower irregular, stigmas 2 7. CANSCORA. 



TRIBE III. Swertieae. Leaves opposite, rarely alternate. Corolla-lobes 

 twisted or imbricate. Ovary 1-celled. Style short, rarely elongate. 



* Corolla without pits or depressions near the base of its lobes (viscid spots or 

 hairy glands sometimes present). 



Twiners, corolla tubular-campanulate 8. CRAWFURDIA. 



Corolla tubular-campanulate, stamens attached on the tube. . 9. GEXTIAXA. 

 Corolla tubular-campanulate, stamens attached between its 



lobes 10. JAESCHKEA. 



Corolla rotate, stamens attached at its base . 11. PLETJROGYNE. 



** Corolla with 1 or 2 depressions pits or spurs near the base of each of its 

 lobes. 



Depressions or pits of the corolla shallow 12. SWERTIA. 



Pits of the corolla prolonged into spurs 4 . .13. HALENIA. 



TRTBE IV. BXenyantheae. Aquatic herbs, leaves radical or alternate. 

 Corolla-lobes induplicate-valvate in the bud. 



Leaves 3-foliolate 14. MENYANTHES. 



Leaves simple, cauline deeply cordate lo. LIMNAXTHEMUM. 



1. COTYLANTHERA, Blume. 



Parasitic, small, glabrous herbs. Leaves scale-like, opposite. Flowers 

 solitary or few, terminal. Calyx deeply 4-lobed. Corolla rotate; lobes 4, 

 oblono-. Stamens 4, on the corolla- tube, filaments linear ; anther-cells oblong, 

 slightly curved, dehiscing by 1-2 terminal pores. Ovary completely 2-celled ; 

 placentae large ; style filiform, stigma small capitate. Capsule globose, septici- 

 dally 2-vaived. Seeds numerous. Species 3, in the Himalaya, Java, and 

 Ladrone Islands. 



1. C. paucisquama, Clarke in Herb. Calcutta] pairs of scales on the 

 stem 1-2 only. 



SIKKIM ; alt. 6000 ft., King. 



Stem 2-4 in., white, fleshy. Leaves in., elliptic, white. Calyx-lobes ^ in., oblong, 

 white. Corolla-lobes | in., linear-lanceolate, dark blue. Filaments - in. Anthers 



