82 Contributions from the Gray Herbarium 
connatis 1-1.7cm. longis. Paniculae terminales et laterales 
multiflorae saepius bifidae, ramis sparse ramosis, 1-1.5 dm. longae, 
in pedunculis ca. 2.5 em. longis; bracteae subscariosae rotundatae 
ad 0.7mm. longae; pedicelli 9-10 mm. longi. Calycis 1.7 mm. 
longi segmenta 5 ovata obtusa paene ad basin distincta, quoque 
basi glandulis 5-6 linearibus donato. Corollae (albidae ?) hypo- 
craterimorphae tubus 7.5 mm. longus basi ad 1.7 mm. diametro 
deinde paullum angustatus ad insertionem staminum paullum 
ampliatus deinde ad limbum isodiametricus; limbi lobi 5 aequales 
oblique cuneati apice rotundati parum crispati 6 mm. longi 3.5 
mm. lati. Discus obscurus. Stamina 5 inclusa glabra. Fructus 
ut dicitur flavus juventate 1.7 em. latus. — British Honpuras: 
a small tree with yellow fruit, in deep forests near Manatee Lagoon, 
10 Aug. 1905, M. EH. Peck 118 (rypx in Gray Herb.). 
ASCLEPIADACEAE 
Patrauias Wats. Proc. Am. Acad. xxiv. 60 (1889). — This 
genus was based by Dr. Watson on his Pattalias Palmeri, described 
from a Sonoran collection of Palmer’s (no. 424 of 1887), with 
which he associated a second species, P. angustifolius (Torr.) 
Wats., another Sonoran species originally published as a Metastelma 
and later transferred to Melinia by Dr. Gray. In the Pflanzen- 
familien (iv. pt. 2, 246, 255) Schumann has placed Pattalias next 
Mellichampia and marked it in his key (p. 246) as of uncertain 
position. His description is so exact a translation of Watson’s 
original (except that Watson’s “ petiolate” for the leaves of P. 
angustifolius is mistranslated “ sitzende”’) that it seems probable 
that he was unable to examine material and drew his description 
entirely from the printed diagnosis of the genus. More recently 
Bartlett (Proc. Am. Acad. xliv. 631 (1909)) has based a new genus, 
Basistelma, on Pattalias angustifolius (Torr.) Wats. and Melinia 
mexicana Brandegee, leaving Pattalias Palmeri the sole representa- 
tive of this genus. 
After careful dissections and comparisons of Pattalias Palmert 
and related species, and various Species of Cynanchum (including 
Vincetoxicum of Bentham & Hooker’s Genera), I have been unable 
to find any characters to justify the maintenance of Pattalias as @ 
distinct genus. In Schumann’s key to the Cynanchinae (p. 246) 
Cynanchum (which with him includes Vincetoxicum Moench, kept 

