394 PROCEEDINGS OF THE AMERICAN ACADEMY 



simis integerrimis, summis filiformibus ; floribus paucis iu racemo laxo 

 longe pedicellatis ; corolla ceerulea majuscula, lobis labii majoris semi- 

 pollicaribus oblongis tubo parum longioribus. — Grassy places, on the 

 summit of the mouutains above Batopilas, at about 8,850 feet. Palmer, 

 360. No. 29 of Coulter's Mexican collection is probably a larger- 

 leaved form of this species, but my specimen is insufficient. 



Apocynoceoe. 



Pluheria Mexicana, Lodd. Bot. Cab. t. 1024? P. Lamhertiana, 

 Lindl. Bot. Reg. t. 1378 ? P. mollis, Benth. PL Hartw. 24, non HBK. 

 — " Trunk erect, 10 or 15 feet high, 6 inches in diameter, with few 

 short and stiff branches." Rocky hillsides, near Batopilas, Palmer, 

 231. This cannot be P. mollis, HBK., from the Orinoco, which is 

 said to have a repent or prostrate trunk, and the leaves pubescent be- 

 neath. Hartweg's specimens are in blossom, Palmer's in fruit, with 

 follicles terete and slender, half a foot long. Body of the seed half an 

 inch long, thin, extended downwardly (toward base of follicle) into 

 thin wing of nearly an inch in length. With our present knowledge it 

 is better to take these names as of one species, and to adopt the oldest 

 name. 



Tabern^montana . Allied to T. littoralis, HBK., or at 



least to no. 2222 of Bourgeau's coll. at Cordoba, but thinner-leaved. 

 In fruit only. Follicles globose- ovate, inch and a half long, with evi- 

 dently fleshy epicarp, dehiscent, very many-seeded. Seeds enclosed iu 

 a scarlet arilliform pulp, the firm and elongated-oblong body 4 lines 

 long, lightly striate ; albumen ruminate at the surface. — In ravines 

 near Batopilas : " a large loose-growing shrub, with dark green foliage, 

 said to be poisonous," Palmer, M. 



Trachelospermum stans. Fruticulus erectus, bi-tripedalis ; foliis 

 fere T.dijformis; pedunculis brevioribus ; floribus baud visis. — Near 

 the city of Chihuahua, under cliffs, Pringle, 640. One would expect 

 the T. difforme collected at Monterey to be the same, but that is 

 twining, and seems to be the United States species. 



Asclep iadacece. 

 Philibertia Palmeri. Inter P. elegantem et P. viminalem 

 quasi media, tenuiter puberula, volubilis ; foliis (plerumque pollicari- 

 bus) oblongis apiculato-acurainatis basi rotundatis vel obtusis brevi- 

 petiolatis ; pedunculis foliis umbellaque multiflora ter longioribus ; 

 corollte alb;ie suaveolentis lobis obtusissimis lin. 3 longis ; corona 

 exteriore annulato conspicuo, interiore peraffinium. — Banks of 



