OF ARTS AND SCIENCES. 435 



Trachelospermum stans, Gray, Proc. Amer. Acad. 21. 394. 

 An upright comjiact shrub, 3 feet high ; in fruit only. Chapala. 

 (724.) 



EcHiTES (Ambltanthera, J. Muelh) tubiflora, Mart. & Gal., 

 ex char. Flowers yellow, tipped with dark green. Barranca. (98.) 



EcHiTES (Amblyanthera?) apocynifolia, Gray, n. sp. Sub- 

 scandens (?) puberula ; ramis foliosis ; foliis ovato-lanceolatis acutis 

 chartaceo-membranaceis basi subcordata brevit-sime petiolatis, venis 

 primai'iis adscendentibus ; pedunculis lateralibus folium oequantibus 

 (bipoUicaribus) racemifloris ; sepalis e basi latiuscula setaceo-subulatis, 

 squamellis brevibus ; corolla lutea hypocraterimorpha glabra, tubo 

 (lin. 5 longo) calyce paullo longiore limbo suo subbreviore ; disco 

 5-glanduloso ; antheris acumiuulatis basi emarginata obtusissima ; 

 folliculis juvenilibus gracilibus torulosis. — Rio Blanco, on hillsides ; 

 July. (734.) " A small bush." The specimens give the idea that 

 the stems may be disposed to twine ; and the habit and short-tubed 

 yellow corollas are not congruous with Macrosiphonia, although the 

 foliage is not very unlike that of M. brachysijihon. 



Piiilibertia Pavoni, Hemsl. Biol. Centr.-Am. Bot. 2. 319. 

 Without doubt also Sarcostemma pcmnosum, Decaisne, and probably 

 S. rotundifolium also. Rio Blanco, on hillsides ; August. (340.) 



Enslenia ligulata, Benth. PI. Hartw. 290. Rio Blanco, in 

 ravines; August. (314.) 



RouLiNiA Jacquini, Decaisne. Tequila, in ravines. (384.) 



Marsdenia Zimapanica, Hemsl. 1. c. 338. Barranca. (Ho.) 



ViNCETOXicuM astephanoides, Gray, n. sp. Frutex volubilis, alte 

 scandens ; foliis (cum ramulis puberulis) membranaceis ovato-lanceo- 

 latis acuminatis 2-3-pollicaribus, cum petiolo subpollicari umbellam 

 plurifloram breve pedunculatam superante ; pedicellis flore sesqui- 

 lineari 2-3-plo longioribus ; corolla alba urceolato-campanulata calycis 

 lobis lato-ovalibus paullo longioribus, lobis ovalibus intus tenuiter 

 arcteque retrorsum villosis ; corona staminea fere obsoleta, nempe 

 annulari 5-crenata gynostegio brevissimo accreta vel potius ad crena- 

 turas carnosulas sub antheris singulis omnino adnatas diminuta. — Bar- 

 ranca, in exposed places, climbing high over bushes. (107.) Scanty 

 specimens, in blossom only. There are no corolline appendages, ex- 

 cept faint indications of mammteform papillae, one just below each 

 sinus ; and it might be thought that there is no stamineal crown, and 

 that the plant should be an Astephanus ; but the fleshy thickening 

 under each subsessile anther may rather be taken for a wholly adnate 

 coronal tube. 



