1918] WEIR—RAZOUMOFSKYA 5 
the leaves have fallen; other- 
wise the seeds placed on the 
foliar ‘spurs will be carried 
away with the falling leaves. 
The cultures of the false 
mistletoes may be considered 
difficult. There must first be 
considerable knowledge of the 
requirements for seed ger- 
mination, and of the plants 
afterward, in the case of the 
work done indoors. Much 
that is necessary has been 
learned, and the work is now 
going on more rapidly. The 
following is the first detailed 
report of the culture of 
mistletoes in this country. 
Some work of this kind 
Fic. 
nbs ponderosa: 
ith stems more or Wns Ctindeeal at base, 
stasitiates Oregon coast; reduced one-fourth. 
LE oa ga sainbelonede. on 
branching form 
but in another connection has already been reported by the 
Fic. 2.—R. campy de on Pinus 
ponderosa: short, thick form with angular 
stems, staminate and pistillate plants; 
n coast. 
writer (Joc. cit.). 
Cultures with yellow pine 
mistletoes 
Razoumofskya campylopoda 
(Engelm.) Piper and R. cryp- 
topoda (Engelm.) Coville, the 
largest and most conspicuous 
members of the genus in the 
United States, are supposedly 
2 distinct species occurring on 
yellow pines. The former 
(figs. 1, 2, 6) is based on 
specimens from north Idaho 
or northeastern Washington, 
and is principally confined to 
the coast and northern Rocky 
