438 
MEXICO.—SUPPLEMENT. 
[ Gendanece. 
1. Cerbera Thevetia. Jacq. Am. 48. t. 34. Bot. Mag. t. 2309. 
Hab. Acapulco. 
Ord. XXX. ASCLEPIADE^. Br. 
1. Asclepias Curassavica. L. — var. foliis angustioribus. 
Hab. Realejo. 
2. A. incarnata. L Bot. Beg. t. 250. 
Hab. Realejo. — The structure of the flowers in the solitary specimen agrees with A. incarnata, espeeially 
in the narrow exserted horns of the nectary, but the staminal crown is, in the dried specimen, deep yellow, 
and the leaves are larger (5 inches long by 2 broad) and upon longer petioles than in authentic specimens of 
A. incarnata. 
3. A. longicornu (Benth. PI. Hartweg. p. 24) ; sufFruticosa, ramis adscendentibus 
pubescentibus, foliis petiolatis ovatis v. ovali-oblongis obtusis undulatis basi cuneatis 
crassiusculis utrinque pubescentibus, umbellis breviter pedunculatis interpetiolaribus 
Flores majusculi. Corolla reflexa, laciniis acutiusculis. Coronee foliola cornuformia, 
angusta, gynostemio plus duplo longiora, supra medium divergentia, apice latiora, aperta, 
processu acuto foliolum parum superante. Benth. 
Hab. Realejo. — A very fine and distinct species. The root is woody and tuberous. Drummond’s .45- 
clepias from Texas (2c? Coll. n. 219), is, if not the same, a nearly allied species. 
1. Sarcostemma bilobum (n. sp.) ; glabrum, caule herbaceo scandente, foliis longe 
petiolatis cordato-ovatis tenuissime acuminatis basi profunde bilobis sinu angusto lobis 
rotundatis, umbellae multiflorae pedunculo foliis longiore, pedicellis elongatis. 
Hab. Acapulco. — An undoubted Sarcostemma, with leaves to 2 inches long, having so deep a fissure 
or narrow sinus at the base as to extend one-third the length of the leaf. Segments of the corolla at length 
reflexed. Outer corona, a fleshy, elevated, entire ring ; inner of 5 fleshy, ovato-triangular, very conspicuous 
leaflets. 
Ord. XXXI. GENTIANE^. Juss. 
1. Erythrsea macrantha (n. sp.) ; caule dilFuso acute tetragono ramoso angulis suba- 
latis, ramis alternis, foliis linearibus acutis trinerviis floribus terminalibus solitariis, calyce 
pentagono ultra | fisso, laciniis subulatis tubum corollse eequantibus, corollae tenui-mem- 
branacese subpellucid^ laciniis ovato-lanceolatis patentibus, capitulo tubum duplo tri- 
plove superante, antheris spiraliter tortis, stigmate ? — (3. major; foliis anguste linearibus 
uninerviis. — Erythrsea Mexicana (?) Hooh. et Arn. snpray p. 302. (the var. from Tepic.) 
