384 BOTANICAL GAZETTE [NOVEMBER 
nerviis infra pubescentibus. Petiolus pubescens, longe $4 laminae. 
Flores conspicui; corymbis compositis; pedicellis pubescentibus; stami- 
nibus 10 vel minus; antheris albis. Fructus autumno maturans; mollis, 
dulcis, ruber vel puniceus, globosus (9™™), levis non costatus, cum pilis 
raris; nucellis osseis, 2-3.—Fig. 2. 
Hab. in Colorado, U. S. A. 
This species is nearest to C. occidentalis Britt., but has much longer petioles, 
smaller, shiny leaves, not dull, somewhat smaller fruit, which is globose, not 
broader than long as in C. occidentalis. The tree is also less gnarled and there 
are no persistent bud-scales at flowering time. . 
ype specimen: Ramaley and Dodds 6184, Pole Canyon near Boulder, Colo- 
rado, Sept. 19, 1908. Type in University of Colorado Herbarium; cotype in 
Rocky Mountain Herbarium at Laramie, Wyoming. ; 
The species grows in gulches in the lower foothills from 5500 to 7000 
altitude; mostly about 6oooft, 
It may be of interest to students of Crataegus to point out that the 
fluting of the fruits, as in C. Doddsii, is a character which has apparently 
not been used by other observers. In alcoholic material and in well-dried 
specimens this character is very noticeable. Attention is called to the cross- 
section of the fruit shown in the drawing (jig. 1),—FRaNcis RAMALEY, 
University of Colorado, Boulder, Colorado. 
SEXUAL CONDITION IN FEGATELLA 
Until the last few years, nothing has been known in regard to the sik 
ual differentiation in the sporophytic stage of dioecious bryophytes. * 
connection with a discussion of the germination of the zygotes of sre 
dioecious molds, the writer? first pointed out this lack of knowledge me [ 
subject and raised the question whether a capsule of a dioecious oe 
contains both male and female spores or spores of but a single sex. prey 
question so far has been settled by the writer? for the single hepatic bula 
chantia polymorpha, and by the Marcuats3 for the three mosses these 
unguiculata, Bryum argenteum, and Ceratodon purpureus. In 2 jum 
forms, as well as in the germinating mold Phycomyces, a single oe dal 
was found to contain both male and female spores as judged by a 
they produced when sown in pure cultures. 1 hepatic 
he purpose of the present brief notice is to add the dioecious hep 
* Zygospore germinations in the Mucorineae. Annales Mycologicl 4775: oe 
? Differentiation of sex in thallus, gametophyte, and sporophyte. egies 
422161-178. 1906, i 
__ 3 Recherches exp€rimentales sur la sexualité des spores chez les Mousses eee 
Mém. couronnés C], Se. Ac. Roy. Belgique 2':1-50. 1906. 
