604 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Aristolochia Nelsonii, n. sp., suffruticosa prostrata ; caule prope 

 basim rainoso velutino, ramis difFusis angulatis ; foliis ovato-cordatis 

 vel saepius auriculato-trilobatis, apice acuminatis, basi ad petiolum 

 cuneate excurrentibus (auriculis rotundatis), palmate trinerviis et reticu- 

 latis, supra investis regulariter adpressis pilis basi minute pustulatis, 

 subter subvelutinis ; petiolis canaliculatis 1-2 cm. loDgis ; floribus soli- 

 tariis in axillis, pedunculis gracilibus 2 cm. longis, apice cum bractea 

 sessili ovato-cordata acuminata 1 cm. longa 5-7 mm. lata ; calycis 

 limbo patulo peripherico longe caudato, basi purpureo-marginato, rlavo 

 circa os, cauda flava 4-5 cm. longa 2 mm. lata ; tubo geniculate 4 

 mm. diametro ; columna superne quinquelobata basi stipitata ; antberis 

 5 ; ovario clavato albo-pilosissimo pedicellate. — Oaxaca : San Gero- 

 nimo, 61 m. altitude, July 1-5, 1895, E. W. Nelson, no. 2769 (type, in 

 hb. Gray). This approaches A. longicaudata Watson, but differs in 

 much broader limb, and in the form of the leaves. It belongs to Sect. 

 Gymnolobus Dctre. 1. c. and to the pentandrous group. 



Passiflora platyneura, n. sp., caulibus angulatis et striatis hispidis 

 pilis albis uncinatis ; cirrhis nullis ; foliis infra mediam partem trilo- 

 batis 2-4 cm. longis 3-5.5 cm. latis, lobo medio oblongo-ovato laterali- 

 bus inaequaliter bilobatis, basi late reniformibus, lobis margine integris 

 vel saepissime irregulariter dentatis, dentibus apice aristatis, nerviis 

 supra filiformibus subter planis ; petiolis ca. 1 cm. longis apice bi- 

 glandulosis glandulis crasse stipitatis ; stipulis viridibus oblique ovatis 

 subfalcatis apice aristate attenuatis 3 mm. longis ; floribus axillaribus 

 pedunculis 15.-2 cm. longis ; bracteis 2-3 proximis angustissime line- 

 aribus attenuatis 2 mm. longis ; calycis tubo rotato-campanulato 

 1.5 cm. lato, lobis lineari-oblongis apice obtusis 1.5 cm. longis 6 mm. 

 latis uninerviis, interiore glabris exteriore hispidis ; petalis tenuibus 

 oblongo-lanceolatis ca. 1 cm. longis 2.5 mm. latis; corona exteriori 

 filamentosa, filamentibus 1.3 cm. longis ad basim liberis ; corona in- 

 teriori membranacea, apice fimbriata, duos annulos inferiores occul- 

 tanti ; gynandrophora 9 mm. longa glabra ; fructibus globosis basi 

 cuneatis. — Oaxaca : Cuilopan Mountains, altitude 2135 m., 27 July, 

 1894, Rev. Lucius C. Smith, no. 44 (type, in hb. Gray) ; Sierra de San 

 Felipe, altitude 2287 m., 31 May, 1894, C. G. Pringle, no. 5750. This 

 species is probably nearest P. Pringlei Robinson & Greenman, differing 

 most noticeably in the shape of the leaf, the position of the stipular 

 glands, and the white instead of dark pubescence. The differences in 

 the flowers seem to be rather of degree than of kind. 



Diospyros Palmeri, n. sp., arborescens ; ramulis divaricatis griseis 

 glabris ; foliis alternis obovatis 3-5 cm. longis 2 cm. latis, basi cuneatis 

 breviter petiolatis, apice rotundatis vel truncatis, coriaceis superne nitida 



