ASCLEPIADE.E. XXII. FISCHERIA. XXIII. HOTA. 



125 



Fl. June, July. Clt. 1821. 



erect, fixed by the base. Suffruticose, twining plants. Leaves 

 opposite, membranous. Root a roundish tuber. 



1 B. TCBEROSUM (R. Br. 1. c-) 



leaves membranous, linear-Ian- FIG. 16. 



ceolate, concave ; flowers ag- 

 gregate, 3-4 in each fascicle ; 

 lobes of corona connivent ; seg- 

 ments of corolla fringed at the 

 base. 7/. ^. G. Native of 

 the Cape of Good Hope. Sta- 

 pelia tuberosa, Meerb. icon. t. 

 54. f. 1. Calyx and pedicels 

 beset with glandular down. Co- 

 rolla greenish outside, dotted 

 with red ; but blackish purple 

 inside, with a deep yellow cen- 

 tre, and broken cross lines ; 

 tube campanulate. Lobes of 

 corona triangular. Flowers fe- 

 tid (f. 16.\ Root a roundish 

 tuber (f. 16. c.) 



Tuberose-rooted Brachystelma. 

 PI. tw. 



2 B. SPATULATUM (Lindl. bot. reg. 1113.) pilose ; leaves spa- 

 tulate, obtuse ; segments of corolla twice as long as the tube ; 

 flowers solitary, pedicellate, one half shorter than the leaves. 

 y.. ^. G. Native of the Cape of Good Hope. Corolla dirty 

 purple, dotted ; having the segments tailed, tomentose outside. 



Spalulate-]ea\ed Brachystelma. Fl. July. Clt. 1826. PI. tw. 

 Cult. For culture and propagation see Ceropegia, p. 112. 



XXII. FISCHE'RIA (named after F. E. L. Fischer, M.D. 

 Director of the Botanic Garden at St. Petersburgh.) D. C. 

 cat. hort. monsp. 1813. p. 112. 



LIN. SYST. Pentandria, Digynia. Corolla rotate; segments 

 undulately curled. Starnineous corona fleshy, truncate, but not 

 otherwise lobed, girded at the base by a nectariferous ring. 

 Anthers simple at the apex, hooked, replicate inside ; pollen 

 masses inserted by the middle of the side, lying upon the stigma. 

 Stigma pentagonal. Follicles two. A climbing, evergreen 

 shrub. Branches long, terete. Leaves opposite, cordate at the 

 base, oval-oblong, acute, petiolate. Peduncles interpetiolar, 

 bearing simple umbels of pedicellate flowers. This appears 

 to be intermediate between Microslemma and Hoya ; but it differs 

 from them, and all the other allied genera, in the corona being 

 entire. 



1 F. SCA'NDESS (D. C. 1. c. t. 67. ined.) ^ . ^. S. Native, 

 probably of South America. Branches downy. Flowers yel- 

 lowish green. Very like Cynanchura crispiflorum, Swartz ; 

 but differs from it, in the calycine segments being shorter, 

 spreading, not reflexed ; in the corolla being rotate, not with a 

 pentagonal tube ; and particularly in the corona and genitals. 



ClCmbing Fischeria. Fl. ? Clt. ? Shrub tw. 



Cult. See Hoya, p. 128., for culture and propagation. 



Sub-tribe II. 



HOYACEJi. Pollen masses erect or connivent, lying upon 

 the stigma, fixed by the base, or beneath the middle of the side. 

 Anthers terminated by a membrane. 



1 . Tube of stamens appendiculate outside. 



XXIII. HO V YA (named in honour of Mr. Thomas Hoy, late 

 gardener to the Duke of Northumberland, at Sion House ; 

 whose merits, as an intelligent and successful cultivator of 



plants, have been long known to the botanists of this country.) 

 R. Br. in mem. wern. soc. 1. p. 26. Asclepias species of Lin. 



LIN. SYST. Pentandria, Digynia. Corolla rotate, o-cleft. 

 Starnineous corona 5- leaved ; leaflets depressed, spreading, 

 fleshy, drawn each out into a tooth on the inner side, which lies 

 on the anthers. Anthers terminated by a membrane ; pollen 

 masses fixed by the base, connivent, compressed. Stigma de- 

 pressed, mutic or sub-apiculated. Follicles smooth. Seeds 

 comose. Twining, scandent, or decumbent shrubs, natives of 

 the East Indies, China, and New Holland. Leaves opposite, 

 fleshy, or membranous. Umbels many-flowered, interpetiolar. 



1. Twining, scandent, or decumbent shrubs, usually radicant. 

 Leaves Jleshy. Leaflets of corona furrowed beneath. Hoya 

 certe. 



* Leaflets of corona Jlaltlsh, broadly obor ate, or nearly orbicular. 



1 H. VKLUTINA (Wight, contrib. ind. bat. p. 35.) twining; 

 leaves oval, short-acuminated, with revolute margins, glabrous 

 above, and velvety beneath ; corolla downy outside, and glabrous 

 inside ; segments broad, with revolute edges ; leaflets of corona 

 nearly orbicular, depressed, shining above : with the obtuse 

 inner angles lying upon the umbilicate stigma. 1j . ^. S. Native 

 of the East Indies. Hoya, Wall. ascl. no. 39. Rumph. amb. 

 5. t. 172.? but Roxb. refers his Ascl. Sussnela to this. 



Velvety Hoya. Shrub tw. 



2 H. ORBICULA'TA (Wall. ascl. no. 32. Wight and Arnott, 1. c.) 

 twining; leaves fleshy, orbicular, glabrous; peduncles many- 

 flowered, shorter than the leaves ; corolla downy inside : with 

 acuminated segments ; leaflets of corona obovate, or nearly orbi- 

 cular, depressed, with the inner angles obtuse ; stigma apiculated. 

 1j . r *. S. Native of Ava, at Prome. Rumph. amb. 5. t. 1 75. 

 f. 28. Leaves generally 4 at each joint of the stem. 



Or6ictt/<zr-leaved Hoya. Shrub tw. 



3 H. PE'NDULA (Wight, and Arnott, contrib. ind. bot. p. 36.) 

 twining ; leaves fleshy, glabrous, from oblong-oval acute to 

 broad ovate, acuminated, with revolute edges ; peduncles pen- 

 dulous, a little longer than die petioles, many-flowered ; corolla 

 downy inside ; leaflets of corona oboval, very blunt, depressed, 

 having the inner angles short and truncate at the apex ; stigma 

 apiculated. 1? . ^. S. Native of the East Indies. 



Var. a., Rheedii (Wight, and Arnott, 1. c.) leaves oblong-oval, 

 acute, fj . r *. S. Native of Malabar and the Circars. Ascle- 

 pias pendula, Roxb. fl. ind. 2. p. 36. Rheed. real. 9. 1. 13. 



Var. /3, Xeelgherense (Wight, and Arnott, 1. c.) leaves ovate, 

 acuminated. fj . f *. S. Native of Neelgherries. Wight, cat. 

 no. 1521. H. revoluta, Wight. Hoya, Wall. ascl. nos. 27. and 

 no 4], 



Pend ulous- umbelled Hoya. Shrub tw. 



4 H. LOSGIFOLIA (Wall. ascl. no. 40. Wight, and Arnott, 1. c.) 

 twining, radicant : leaves fleshy, narrow-lanceolate, acuminated, 

 attenuated at the base ; corolla downy inside, with ciliated mar- 

 gins ; leaflets of corona broad-obovate, obtuse, having the inner 

 angles lying on the stigma. f; . / ^ > . S. Native of the 

 Himalaiah, at Mussooree, Royle, Nepaul, and Singapore. Hoya, 

 Wall. ascl. no. 44.? Leaves 3-6 inches long, and 6-12 lines 

 broad. 



Long-leaved Hoya. Shrub tw. 



5 H. LINEA'RIS (Wall, ex D. Don, prod. fl. nep. p. 130. 

 Wall. ascl. no. 34. Wight, and Arnott, 1. c.) twining, pilose ; 

 stems slender, radicant, leafy ; leaves fleshy, narrow-linear, 

 acutish ; corolla rather downy inside, with ciliated edges ; seg- 

 ments obtuse ; leaflets of corona nearly orbicular, having the 

 inner angles lying upon the stigma, Jj . ^\ S. Native of Nipaul. 

 Plant 3 times smaller than H. lanceoldta. 



.Linear-leaved Hoya. Shrub tw. 



