June, 1887.] 
NEW LITERATURE. 
71, 
and in a week the heads were formed and became stalked. On May 31st, 
the grains had mature heads and were then examined microscopically. 
The stems were two to three centimetres long and the ascigerous heads 
two to three millimetres in diameter and sphseroidal. The asci were 
4 x 230 /'- and 8-spored ; the spores were 1 x 120 Saccardo gives the 
size of spores of Claviceps purpurea (Fr.) as 50—76 p. Dr. Halsted finds 
that the ascigerous stems from the cultivated rye as figured by Dr. Win¬ 
ter (Pilze II, 91) are much shorter and the heads larger than those men¬ 
tioned above. That the species of ergot infecting the wild rye is the 
same as that of the cultivated rye, Claviceps purpurea , remains an open 
question. 
‘•Notes upon the Peronospore^e for 1886.” 1. c. 
“Notes upon the Ustilagine^e.” 1. c. 
“The Ash-Leaf Rust.” 1. c. 
“The Clover Mould (Cladosporium). 1. c. 
“Fungi of Forest Trees.” 1. c. 
“Colorado Fungi.” July, 1886. 1. c. 
Twenty-five species are enumerated, of these, the following new : 
Tubercularia Lupini , Farlow, m litt , on L. Kingii , Watson, Gunnison, 
Colo.; Puccwia sp.. on Artemisia Mexicana , Willd., Aeddium and Puccin- 
ia. The secidia are long and slender and perhaps new. Of the Puc- 
cinia. Dr. Farlow says : “It is not the usual form on Arttmisia and does 
not exactly correspond to anything I have examined. * * I think it 
may be new and the secidium may very likely be its secidium.” A para¬ 
sitic fungus was found on Pseudotsuga Douglasii, Carr, causing distor¬ 
tions called “eagle nests.” Of this, Dr. Farlow says : “It has almost a 
greater similarity to some of the Cceomata and Abies than to a Perider- 
mium; but it has a peridium more delicate than in any species known. 
It seems to be new. In habit and the distinctions produced, it reminds 
one of Aeddium corruscens, Fr., but unless it changes very much as it 
grows older, it cannot be that species. It is characterized by the size of 
its spores and size and thin markings of peridial cells.” 
“ Relation between ‘Cedar-Apples’ and the Leaf Rust on the 
wild Crab Apple.” 1. c. 
“A partial List of Iowa Powdery Mildews.” A. S. Hitchcock. 
1. c. 
“Fungi injurious to Grasses and Clovers.” Wm. Trelease, St. 
Louis, Mo. From “Beal’s Grasses of North America.” 
A popular account, with illustrations of fourteen species, covering 
pp. 413-431. 
“Ueber einige auf Rubus arcticus L. vorkommende parasitische 
Pilze.” Af G.Lagerheim. Separataftryck ur BotaniskaNotiser, 1887. 
“ ESPERIMENTI SUL PARASITISMO DELL’ AGARICUS MELLEUS, VAHL.” 
Di L. Savastano. Nuovo Giornale Batanico Italiano, April, 1887. 
“Botanical Manuals for Students.” Chas. E. Bessey. American 
Naturalist, April, 1887. 
“St. George’s Mushroom, Agaricus gambosus,” Fr. Worthing¬ 
ton G. Smith, Gardner’s Chronicle, April 23,1887. 
“An Introduction to the Study of Lichens.” By Henry Willey. 
Pp. 72, ten plates. 
