64 
this is the only genus of the cactus family which has representa- 
tives outside of America, a few species occurring in Africa and 
one with a distribution extending to Ceylon. The plants are, 
for the most part, epiphytic, that is, they grow upon other plants 
without deriving nourishment from them. Of the known species, 
about 55, only § occur in the Old World. Of the remainder over 
They boas a wide diversity in form. In some the stems are 
round, in the istletoe a Rhipsalis Cassutha, a native 
eee of ee Amer In others the stems are furnished 
with three to six or more abe i ent va and R. sulcata. 
the midrib of the joint, indicating their preferred habitat on 
trees, to which they attach themselves by this means.—G. 
ACCESSIONS. 
D HERBARIUM. 
I cotype specimen of Phyllachora Merrilli Ricker. (Collected by Mr. E. D. 
Merrill. 
2 specimens of fungi from Colorado. 
(By exchange with Professor Ellsworth 
Bethel. 
I specimen of fungus from Washington. (By exchange with Mr. E. ‘Bartholo- 
mew.) 
4 local fungi from propagating house. (Collected by i Fred - Seaver.) 
40 specimens of fleshy fungi from Cold Spring Harbor, L. I. (Given by Dr. 
E. D. Clark.) 
10 specimens of fungi from Island Heights, N. J. (Collected by aes Wilson.) 
roo specimens of fleshy fungi from Rochdale, Massachusetts. (Given by Dr. 
E. D. Clark.) 
specimens of woody fungi from Ohio and Florida. 
L. Overholts 
78 he fearon specimens from British Columbia. 
logical Survey of Canada. 
(By exchange with Mr. 
(By exchange with the Geo- 
imens of eae ges rlont Dakota. (By peed with Dr. J. Lunell.) 
n by 
2 specimens of t ( Miss Edna Scorup.) 
1 specimen of Polypodium from Costa Rica. ‘(By pian with Mr. C. Bel. 
) 
hatte 
