ROBINSON: CONTRIBUTIONS FROM GRAY HERBARIUM. 271 
J. D. Smith, Enum. pi. Gnat., v, 45, as to no. 7064, not Sch. Bip. — 
Costa Rica: in thickets on the banks of the Rio Yirilla, San Jose, 
Ad. Tonduz, January, 1896, no. 9859 (also no. 7064 of the exsic- 
catae, of Mr. J. 1). Smith). 
This species differs from X. asclepiadeum, Sch. Bip., in its more 
ample inflorescence, larger and more obtuse involucral scales, as well 
as in the nature of the pubescence. It differs from L. polyanthum , 
Klatt, still more copspicuously in its short pubescence of a stiffish 
character, which remains even to maturity upon the upper surface 
of the leaves. In L. polyanthum the leaves are covered above by a 
delicate arachnoid fugacious pubescence. 
Printed , February, 1904. 
