108 



ASCLEPIADEjE. 



anther, fixed to the corpuscles of the stigma, by the apex or above 

 the middle of the side, pendulous, that is 5 anthers, separable 

 into 2 parts by a longitudinal furrow. Anthers terminated by 

 a membrane. 



1. Stamineotu tube appendiculate. Corona simple, 5-leaved ; 

 leaflets opposite the anthers ; and sometimes with as many small 

 segments between the others in the same series. 



41 ASCLE'PIAS. Corolla 5-parted, reflexed (f. 18. e.). Leaf- 

 lets of corona cucullate, seated on the top of the tube of the 

 filaments : having a little horn-formed segment running from 

 the bottom of each, lying in the hollow. Follicles slender, 

 smooth. 



42 POLYOTUS. Corolla rotate, 5-parted, reflexed. Leaflets 

 of corona ovate-concave, without any appendage inside, but 

 auriculate at the base. Follicles slender, smooth, or villous. 



43 ENSLE'NIA. Corolla 5-parted, erect. Corona simple, 5- 

 parted, petaloid, flat, truncate ; the segments ending in a bifid 

 thread. Stigma conical, subilamellate. Follicles slender, 

 smooth. 



44 GOMPHOCA'RPUS. Corolla 5-parted, reflexed. Leaflets 

 of corona subcucullate, furnished with a tooth on each side, 

 but without any appendage inside. Follicles inflated, ramen- 

 taceous. 



45 OTA'RIA. Corolla 5-parted, reflexed. Corona 5-leaved, 

 seated on the upper part with the tube of the filaments ; leaflets 

 cucullate : having a horn-formed process running from the 

 bottom, and biauriculate on the inside at the base. Follicles. ? 



46 OXYSTE'LMA. Corolla rotate, not reflexed. Leaflets of 

 corona acute, or acuminated, toothless inside. Follicles smooth. 



47 IPHISIA. Corolla rotate. Leaflets of corona narrow at 

 top, toothless inside. Follicles smooth. 



48 PENTA'TROPIS. Corolla rotate. Leaflets of corona ver- 

 tically adnate to the gynostegium, averse and free at top. Pollen 

 masses fixed beneath the apex. 



49 RAPHISTE'MMA. Corolla campanulate. Leaflets of co- 

 rona elongated, compressed. Follicles ventricose. Gynoste- 

 gium appendiculate outside. ? 



50 UROSTE'LMA. Corolla campanulate. Corona 5-lobed; 

 lobes obtuse. Gynostegium furnished with 5 long membranous 

 processes, each process furnished with a filiform appendage. 

 Follicles muricated. 



51 ANA'NTHERIX. Corolla subcampanulate, 5-cleft. Corona 

 5-lobed ; lobes compressed, empty inside, incurved ; furnished 

 with a little segment at the apex inside. Follicles muricated. 



52 XYSMALOBIUM. Corolla somewhat campanulate ; with a 

 ventricose tube. Gynostegium exserted. Pollen masses com- 

 pressed. Leaflets of corona obtuse, fleshy, alternating with 5 

 small denticulations. Follicles ventricose, ramentaceous. 



53 CALOTROPIS. Corolla, gynostegium, and pollen masses as 

 in Xysmalobium. Leaflets of corona adnate, longitudinally 

 averse, recurved at the base. Follicles ventricose, smooth. 



54 OXYPE'TALUM. Corolla, gynostegium, and pollen masses 

 as in Xysmalobium. Leaflets of corona fleshy, obtuse. Pollen 

 masses fixed to the curvatures of the processes, which at length 

 are ascending. 



55 SCHUBE'RTIA. Corolla funnel-shaped, ventricose at the 

 base. Gynostegium exserted. ? Leaflets of corona adnate to 

 the tube of the filaments, lanceolate, connivent. Follicles un- 

 known. 



56 LACHNOSTOMA. Corolla somewhat salver-shaped ; with a 

 bearded throat. Gynostegium and pollen masses as in Xysma- 

 lobium. Leaflets of corona lunately 2-lobed, fleshy ; lobes 

 linear. 



57 MACROSCE'PIS. Calyx exceeding the corolla. Corolla 

 and pollen masses as in Xysmalobium. Gynostegium saucer- 

 shaped, hardly exceeding the tube of the corolla. Corona of 

 5, fleshy, roundish, rather concave scales. 



58 ARAU'JIA. Corolla campanulately urceolate (f. 20. c.) ; 

 with 5 swellings at the base. Gynostegium inclosed. Leaflets 

 of corona saccate, naked inside. Stigma bicornute at apex. 

 Pollen masses fixed by the apex. ? 



59 KANA'HIA. Corolla campanulate. Gynostegium inclosed. 

 Leaflets of corona dilated from the base, subulate, simple in- 

 side. Pollen masses ventricose, fixed by their apexes. Stigma 

 mutic. 



60 DJPLO'LEPIS. Corolla urceolate. Gynostegium inclosed. 

 Leaflets of corona furnished each with a small, parallel segment 

 inside. Pollen masses ventricose, fixed beneath their apices. 



2. Gynostegium appendiculate. Corona simple, of one piece : 

 having its tube sometimes furnished with segments or keels z- 

 side. Corolla subrotate. 



61 HOLOSTE'MMA. Corona annular, quite entire. Pollen 

 masses compressed. 



62 CYNA'NCHUM. Mouth of corona 5-20-cleft, when only 

 5-cleft the lobes are opposite the anthers. 



63 METAPLE'XIS. Corona 5-parted; lobes alternating with 

 the anthers. 



3. Gynostegium appendiculate. Corona compound, in 2-3 

 series, each series nith a distinct insertion. Throat of corolla 

 without scales. 



64 DITA'SSA. Corona double ; outer one 5-parted, with 

 acuminated segments ; segments of interior one shorter and 

 opposite those of the outer one. 



65 D X MIA. Corona double ; outer ones 5-parted, some- 

 times alternating with smaller segments ; inner one longer, and 

 alternating with the outer one : having the segments loose or free 

 to the base. Follicles ramentaceous. 



66 SARCOSTE'MMA. Corona double ; outer one cup-shaped 

 or annular, crenated ; inner one longer and 5-parted ; both 

 fleshy. Follicles slender, smooth. 



67 PHILIBE'RTIA. Corona double ; exterior one annular, 

 entire, fleshy, undulated ; inner one inserted on the top of the 

 gynostegium, of 5 entire, fleshy segments. Corolla urceolate, 

 sinuately 5-lobed, furnished with small teeth between the seg- 

 ments. 



68 EUSTE'GIA. Corona triple, each composed of 5 segments ; 

 outer one inserted in the throat of the corolla, and opposite its 

 segments ; segments of the middle one tripartite ; inner one 

 undivided. 



