Blake — Descriptions of New Spermatophytes 83 
distinct by Bentham & Hooker) is mentioned only in the group 
with ‘‘ Coronazipfel glocken- oder krugférmig, mit kurzen Zipfeln,”’ 
while Pattalias is placed in the group with ‘“ Corona tiefer geteilt; 
Zipfel zuweilen nur am Grunde ringférmig verbunden.”’ But in 
the text, the first section of Cynanchum (§Vincetoxicum (Moench) 
K. Sch.) is described as with “ Corona sehr tief geteilt oder in fast 
ganz freie, selten voéllig getrennte Zipfel gelést.’’ In this regard, 
then, there is no difference between Pattalias and Cynanchum. 
Furthermore, Pattalias agrees in all essential features — 5-parted 
eglandular calyx, shape and twisting of corolla-lobes, and insertion 
of corona upon the column — with Cynanchum § Vincetoxicum of 
Schumann. The stigma-rostrum from which Dr. Watson’s name 
was derived is in P. Palmeri merely depressed-conic, in the ex- 
cluded P. angustifolius (= Basistelma angustifolium (Torr.) Bart- 
lett) slenderly columnar and subterete. It was described (in P. 
Palmeri) as entire by Watson, and as distinctly bifid by Bartlett. 
To me it appears very faintly and obscurely bifid. In the related 
species described below as Cynanchum peninsulare it is longer than 
in P. Palmeri, more acutely conic, and distinetly bifid, but neither 
species can be sharply separated by this feature from Cynanchum, 
which is described by Bentham & Hooker as with stigma “ medio 
vertice convexiusculum v. breviter conicum”’ (Cynanchum) or 
“‘apiculo crasso conico breviter 2-fido instructum (rarius rostra- 
tum ?) ” (Vincetoxicum), and by Schumann as with “ Narbenkopf 
gewohnlich gebuckelt, selten plump keulenférmig oder cylindrisch 
uber die Stb. hinaus verlingert und dann 2lappig.” 
In the absence of any distinguishing features of habit or struc- 
ture, it becomes necessary to sink the genus Pattalias in Cynanchum. 
The only described species becomes 
CynancuuM Palmeri (Wats.), comb. nov. — Pattalias Palmeri 
Wats. ! Proc. Am. Acad. xxiv. 60 (1889). — The species has never 
been found since it was collected by Palmer in 1887. 
CYNANCHUM peninsulare, sp. nov. Planta scandens ? verisim. 
pluricaulis. Caulis canescenti-viridis tenuis subteres ad nodos 
sparse pubescens ceterum subglaber ramosus. Folia sine 
linearia mucronata margine sparse appresse pu basi vix 
angustata sessilia subplana 3-8.3 cm. longa 1—1.8 mm. lata. Flores 
in axillis foliorum 2-7 subumbellati; pedunculus pubescens ad 
1 mm. longus; pedicelli ad 2mm. longi. Calyx ad basin 5-partitus 
