306 BOTANICAL GAZETTE [APRIL 
are recorded in Lupinus (L. Brittoni), Amorpha (A. occidentalis), Ceanothus 
(C. austro-montanus), and Malacothamnus (M. Nuttallii); and several new 
combinations are made. The work includes 375 recognized species, represent- 
ing approximately 150 genera, distributed in 57 families. Whether or not we 
agree with the limitation of groups and the nomenclature in all cases is a matter 
of minor significance. It is a pleasure to state that the author has given us a 
work which will serve as an exceedingly helpful guide in studying the woody 
plants of southern California.—J. M. GREENMAN. 
North American Flora.*—Volume III, part 1, contains a treatment of the 
Nectriaceae and Hypocreaceae by F. J. SEAVER, the Chaetomiaceae by H. L. 
PALLISER, and the Fimetariaceae by D. Grirritus and F. J. SEAVER. These 
four families are represented by 242 species which are referred to 45 genera. 
One new species is described in Scoleonectria (S. tetraspora), found growing 
on trunks of cacao in Jamaica, and four new species from eastern and central 
United States are added to Chaetomium.—J. M. GREENMAN. 
Revision of Eucalyptus.—The recent issue of Volume II, part 2, continues 
Mr. Mamen’s’ excellent revision of this genus. The present part conta 
descriptive matter relating to ten species and four full-page illustrations. 
This work can be used advantageously in conjunction with the “Forest flora 
of New South Wales” by the same author.—J. M. GREENMAN. 
NOTES FOR STUDENTS 
Cystidia of Coprinus.—BULLER® has given an interesting account of his 
studies on the cystidia of Coprinus atramentarius. The lamellae of this spec 
are very thin, broad, with parallel sides, and lie very close together. Beco 
of their soft texture and extreme flexibility, many of them would lie very 
close together, or actually adhere, were it not for some kind of stay is nef 
for spacing them. The spores, then, which are shot off from the sterigmata 
could not fall down and out from the interlamellar spaces. The de : i 
function as props to hold the lamellae equidistant. They are large cine 
cells, with a slender stalk, which grow out from the subhymenium, the bro 
portion extending across the interlamellar space against the opposite gill sur- 
face or sometimes slightly entering it. They are 120-170X 20-30 a 
aie distributed, there being about 75-100 on each square mm. of gill 
ace. 
* North American flora, Vol. III, part 1, pp. 1-88. New York Botanical Garden- 
December 20, 1910 
‘ Maren, J. H., A critical revision of the genus Eucalyptus, Vol. I, part 4+ 
61-100, pls. 53-56. Sydney: William Applegate Gullick. 1910 
_ * Butter, A. H.R., The function and fate of the cystidia of Copri 
rius, together with some general remarks on Coprinus fruit bodies. Annals 
24:613-629. pls. 50, 51. I9to. 
pp- 
nus abramenta- 
j Botany 
