238 LXXX. ASCLEPIADEJE. 



2S. EUSTEGIA, E. Br. 

 Calyx 5-parted. Corolla rotate, 5-fid. Corona triple, each 

 of 5 folioles, the outermost inserted in the throat of corolla, 

 opposite the segments, the others alternating with the outer ; 

 the folioles of the medial corona 3-parted,of the inner undi- 

 vided. Anthers membrane-tipped. Pollinia taper-pointed, pen- 

 dulous. Stigma nearly pointless. — DC. Frocl. viii. p. 5i5. 



Small, decumbent, branching herbs, with narrow, hastate leaves and sub- 

 umbellate, small flowers. — 4? species, Western. 



29. FOCKEA, Endl. 



Calyx 5-parted ; sepals keeled. Corolla campanulate, 5-fid, 

 the segments linear-lanceolate, attenuate, spreading or reflexed, 

 papillose within. Corona campanulate, tubular, triple, the 

 folioles concrete at base ; outer with the mouth 15-lobed, lobes 

 unequal, short, 5 smaller ; medial longer, of 5 concave, 3-lobed 

 segments, the middle lobe subulate; inner of 5 subulate- 

 acuminate, entire segments, opposite those of the medial 

 corona. Anthers tipped with an oblong, very delicately 

 membranous bag ! Pollinia {fde Endl.) " ovoid, affixed to the 

 tapering apex, pendulous." G-ynostege sessile. Stigma sub- 

 umbonate. Pollicles smooth, rostrate, by abortion solitary. — 

 DC. Prod. viii. p. 54^5. Cliymocormus, Harv. in Hooh. Lond. 

 Journ. i. p. 23. 



Climbing or trailing herbs, with large, tuberous, succulent roots. Leaves 

 opposite, coriaceous. Flowers small, greenish, subsessile, in extra-axillary 

 tufts or solitary. The flowers seem to be sometimes polygamous ; I have 

 repeatedly sought in my specimens for pollinia, but never found any. — 3 

 species. 



Teibe'4. Stapelie^. (Gen. 30-48.) 

 80. TENARIS, E. Mey. 



Calyx small, 5-parted. Corolla siibrotate, 5-parted, the 

 segments narrow-spathulate, papillose below. Corona in- 

 serted at the apex of the gynostege ; of 5 short, cucullate, 

 sharply emarginate folioles, alternating with the stamens, fur- 

 nished at the base within with two tooth-like ])rocesses ; and 

 5 internal, subulate teeth, opposite the stamens. Anthers 

 small, without membranous tip, fleshy. Pollinia erect, round- 

 ish. Stigma 5-angled, flattish. Eollicles in pairs, slender, 

 smooth, erect, on a straight peduncle. — DC. Frod. viii. p. 606 ; 

 Thes. Cap. t. 43. 



A slender, erect herb with very narrow leaves and pretty, purplish 

 flowers. — Frequent on the Eastern frontier. 



31. TYLOPHORA, E. Br. 



Calyx 5-fid ; sepals ovate or ovate-lanceolate. Corolla ro- 



