90 
MERRILL. 
blunt at both ends, straight or slightly curved, about 2 cm long, and 3 
mm wide, often thicker in one half than in the other. 
Luzon, Province of Laguna, Cuming 516 (type in Herb. Kew.), Elmer 8250, 
Alberto s. n. Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 293, s. n. 
Basilan, For. Bur. 3456 Hutchinson. Polillo, Bur. Sci. 10161 McGregor. 
A sylvan species extending from slightly above sea level to an altitude of at 
least 800 m. 
Var. monophylla var. nov. 
Differt a typo foliis omnibus unifoliolatis. 
Mindanao, District of Davao, Catalonan, Copeland 931, April, 1904, in forests, 
altitude 125 m. 
This endemic species was originally described by Bentham as Desmodium 
securiforme, and placed by him in the section Podocarpium, stating that the 
articulations of the pods are usually solitary; a rather complete series of speci- 
mens shows that the pods are always reduced to a single joint, and that in 
a number of flowers examined, from different specimens, the ovaries never show 
traces of more than one joint, or more than one ovule. It has the general 
appearance of various species of Desmodium of the section Podocarpium, and 
has undoubtedly been derived from the section; it is, however, distinguishable 
from all species of Desmodium by its 1 -seeded, • nonarticulated pods, 1-ovuled 
ovaries, and narrowly oblong seeds, and I consider it to be generically distinct. 
While Monarthrocarpus may not be distinguished from Desmodium by stronger 
characters than some of the sections of that genus, such as Dendrolobium, Phyllo- 
dium, etc., it has been considered expedient to propose for it generic rank, although 
logically, it should, perhaps be treated only^ as a section. As noted in the introduc- 
tion to this paper, for purposes of comparison, genera have been retained as 
defined by Bentham and Hooker in their Genera Plantarum, or by Taubert in 
the Natiirlichen Pflanzenfamilien, and hence I have not followed some recent 
botanists in raising various sections or subgenera of Desmodium, Cassia, etc., to 
generic rank, although in a number of cases I have no doubt but that some of the 
sections or subgenera are worthy of being so treated. 
49. PSEUDARTHRI A W. & A. 
1. Pseudarthria viscida (Linn.) W. & A. Prodr. (1834) 209; Wight Ic. t. 
286; Baker in Hook. f. FI. Brit. Ind. 2 (1876) 154; Ceron Cat. PL Herb. (Manila) 
(1892) 62. 
Hedysarum viscidum L. Sp. PI. (1753) 747. 
Desmodium viscidum DC. Prodr. 2 (1825) 336. 
Desmodium timoriense DC. 1. c. 327. 
Panat, Yoder J/0, Copeland s. n. 
India and Ceylon to Timor; not reported from the Malay Peninsula. 
Dr. H. Lecomte of the Museum of Natural History, Paris, has kindly compared 
material of Yoder 40 with the type collection of Desmodium timoriense DC., and 
informs me that the Philippine material is the same as DeCandolle’s species, 
which is here accordingly reduced. 
