ASCLEPIADE.E. LVIII. ARACJIA. LIX. KAKAHIA. LX. DIPLOLEPIS. LXI. HOLOSTEMMA. 



149 



FIG. 20. 



a.) Corolla campanulately urceolate (f. 20. 6.) with 5 swellings 

 outside at the base, and a corresponding number of cavities in- 

 side ; limb spreading a little, 5-cleft. Column inclosed. Sta- 

 mineous corona of 5 leaves ; leaflets cucullate, furnished each 

 with a horizontal scale outside. Anthers terminated by a mem- 

 brane ; pollen masses pendulous, fixed by their tapering tops. 

 Stigma ovate, 2-horned at the apex. Follicles ovate, ven- 

 tricose, bent downwards, semi-bilocular ; dissepiment or placenta 

 covered with numerous lamellae. Seeds comose, adhering to the 

 lamellae of the dissepiment. Twining, herbaceous plants. Leaves 

 opposite, cordate. Racemes interpetiolar, few-flowered, cymose. 

 Flowers white. 



1 A. SERICOFERA (Brot. 1. c. 

 p. 62. t. 1.) leaves cordate, gla- 

 brous, glandular at the top of 

 the petioles ; racemes cymose, 

 pendulous, few-flowered ; root 

 creeping. T; . ^. S. Native 

 of Peru, from which place it 

 was received by Brotero, under 

 the name of Apocynum Peru- 

 tianum. Flowers white, (f. 20.) 



Silk-bearing Araujia. Fl. ? 

 Clt. ? Shrub tw. 



2 A. A'LBENS ; herbaceous ; 

 leaves acute at the apex, cor- 

 dately truncate at the base ; 

 white and pruinose beneath ; 

 flowers sub-dichotomously cy- 

 mose. fj . ^. S. Native of Brazil, in the province of St. Paul. 

 Physianthus albens, Mart. nov. gen. bras. 1. p. 54. t. 32. 

 Graham, in hot. mag. t. 3201. Lindl. bot. reg. t. 1759. Leaves 

 tomentose beneath, and beset with fine scattered pili above. Co- 

 rolla downy, white, with a tinge of red; tube length of calyx. 



J7^-flowered Araujia. Fl July, Aug. Clt. 1830. Sh. 

 twining. 



3 A. MEGAPOTA'MICA ; twining, glabrous ; leaves sagittately 

 cordate, acuminated ; peduncles 1-flowered ; lobes of corona 

 denticulated. ^ . ^. S. Native of Brazil, at Rio Grande. 

 Physianthus Megapotamica, Spreng. syst. add. p. 112. 



Rio Grande Araujia. Shrub tw. 



Cult. For culture and propagation see Oxypetalum, p. 148. 



LIX. KANA'HIA (the plant is called Kanakk by the Arabs.) 

 R. Br. in. mem. wern. soc. 1. p. 38. Asclepias species, Forsk. 



LIN. SYST. Pentdndria, Digynia. Corolla campanulate, with 

 a 5-parted limb. Column half-inclosed. Stamineous corona, 

 seated on the top of the tube of the filaments, 5 -leaved; leaflets 

 thickened from the base, subulate, undivided. Anthers termi- 

 nated by a membrane. Pollen masses ventricose, fixed by their 

 apexes, pendulous. Stigma mutic. Follicles slender, striated. 

 Seeds comose ? An erect shrub, native of Arabia. Leaves 

 opposite, flat. Peduncles interpetiolar, bearing at their apexes 

 many-flo\vered fascicles ; pedicels imbricate, unibracteate at the 

 base. 



1 K. LANIFLORA. T^ . G. Native of Arabia Felix and Abys- 

 sinia. K. Kannah, Roem. et Schultes, syst. 6. p. 95. Ascle- 

 pias laniflora, Forsk. descrip. p. 51. Vahl, symb. 1. p. 23. t. 

 7. Kanakk of the Arabs. Leaves 3 inches long, quite gla- 

 brous, tapering to both ends. Leaves of involucrum subulate, 

 unequal. 



Woolly-fiovrered Kanahia. Shrub. 



Cult. For culture and propagation see Calotropis, p. 147. 



LX. DIPLO'LEPIS (from rWXooc, dipioos, double ; and 

 XtTric, lepis, a scale ; leaflets of corona furnished each with a 

 scale inside.) R. Br. in. mem. wern. soc. 1. p. 41. 



LIN. SYST. Pentdndria, Digynia. Corolla with a short, 

 urceolate tube ; and a 5-parted limb. Stamineous corona 5- 

 leaved ; leaflets obtuse, furnished with a scale each inside. An- 

 thers terminated by a membrane. Pollen masses ventricose, 

 fixed near their apexes, pendulous. Stigma mutic, elongated, 

 undivided. Follicles unknown. 



1 D. MENZIB sn (Roem.et Schultz, syst. 6. p. 95.) T; . ^. ? 

 S. Native of Chili, near Valparaiso. This is the only certain 

 species of the genus. The Asclepias vomitbria, Konig. mss. 

 agrees with this genus in many respects, especially in the form, 

 and insertion of the pollen masses ; but differs considerably in 

 habit, and in having a blunt stigma. 



Menzies's Deplolepis. Shrub twining ? 



2 D.? APICULA'TA (Lindl. in hort. trans. 6. p. 68.) leaves round- 

 ish-elliptic, cordate, apiculated, shining, very villous, as well 

 as the steins ; stigma depressed. Jj . *"\ G. Native of China. 

 Flowers greenish. 



Apiculated-\eaved Diplolepis. Fl. Ju. July. Clt. 1821. 

 Shrub tw. 



Cult. For culture and propagation see Oxypetalum, p. 148. 



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

 having its tube sometimes furnished with segments or keels in- 

 side. Corolla sub-rotate. 



LXI. HOLOSTE'MMA (from 6Xoc, holes, entire ; and 

 stemma, a crown ; the corona is almost entire.) R. Br. in mem. 

 wern. soc. 1 . p. 42. Asclepias species of authors. 



LIN. SYST. Pentdndria, Digynia. Corolla subrotate, 5- 

 cleft. Stamineous corona inserted in the gynostegium, simple, 

 annular, obsoletely 5-lobed. Anthers terminated by a mem- 

 brane. Pollen masses pendulous, compressed, fixed by their 

 tapering tops. Stigma mutic. Follicles ventricose, smooth. 

 Seeds comose Glabrous, twining shrubs. Leaves opposite, 

 broad. Umbels interpetiolar, on short peduncles. Flowers 

 showy, white. 



1 H. RHE'EDII (Spreng. syst. 1. p. 851. Wall. pi. asiat. rar. 

 2. p. 51.) leaves broad-ovate, cordate. Jj . ^. S. Native of 

 Malabar, Mysore, Samulcottah, and the Circars ; also at Gual- 

 para, and Kinour. H. A x da Kodien, Roem. et Schultes, syst. 6. 

 p. 95. Asclepias annularia, Roxb. fl. ind. 2. p. 37. mus. ind. 

 orient, t. 613. Asclepias con volvulacea, Heyne, herb. Cynan- 

 chum annulare, Heyne, herb. C. cordifblium, and C. grandiflo- 

 ruin, Russ. herb. Sarcostemma annulare, Roth. nov. spec. p. 

 178. Room, et Schultes, syst. 6. p. 115. Gomphocarpus volu- 

 bilis, Hainilt. herb. Corollas yellowish or whitish, tinged with 

 red. Follicles smooth. 



Rheede's Holostemma. Shrub twining. 



2 H. FRA'GRANS (Wall. pi. asiat. rar. 2. p. 51.) leaves oblong- 

 cordate : upper ones oblong-lanceolate, sagittately cordate at the 

 base : lobes imbricating. I; . r *. S. Native of the Burmese 

 Empire, on mountains on the banks of the Irrawaddi, at Scendya, 

 and Prome, also on mount Taong Dong, not far from Ava. 



Fragrant Holostemma. Shrub twining. 



3 H. TUBERCULA'TUM (Blum, bijdr. p. 1055.) leaves membra- 

 nous, ovate, acute, deeply cordate at the base, paler beneath ; 

 follicles tubercular. I? . ^. S. Native of Java, on mountains. 



Tuiercu/ar-follicled Holostemma. Fl. year. Shrub tw. 



4 H. MURICA'TUM (Blum, bijdr. p. 1055.) leaves membranous, 

 ovate-oblong, acuminated, deeply cordate at the base, glauces- 

 cent beneath ; follicles muricated. fy . ^. S. Native of Java, 

 on the mountains, where it is called Tjaput tuhur. 



Muricated-folYicled Holostemma. Fl. Nov. Dec. Shrub tw. 



5 H. LE'VE (Blum, bijdr. 1055.) leaves coriaceous, oblong, 

 acuminated, obliquely sub-cordate at the base ; follicles smooth. 

 fj . r *. S. Native of Java, on Mount Salak in shady places. 



Smooth Holostemma. Fl. Feb. April. Shrub tw. 



Cult. See Oxypetalum, p. 148. for culture and propagation. 



