— 73 — 
Figs. 5, 6. Male plants, mostly in dorsal view, X15. 
Fig. 7. Cells from the apex of a stem-leaf, X265. 
Fig. 1 was drawn from a specimen collected above Hoquiam, Washington, by A. S. Foster, 
No. 759; Fig. 2 from a specimen collected at Pacific Beach, Washington, by the same collector; 
and the remaining figures from specimens collected at Renton, Washington, by T. C. Frye, No. 22. 
The rhizoids are not represented. 
Nardia crenulata (Sm.) Lindb. 
Fig. 8. Cells from the apex of a stem-leaf, X265. 
. Drawn from a specimen collected in the valley of the Barrasois, Cape Breton, Nova Scotia, 
by G. E. Nichols, No. 1376. 
Nardia crenulata gracillima (Sm.) Lindb. 
Fig. 9. Cells from the apex of a stem-leaf, X265. 
Drawn from a specimen collected near Herlisheim in the Vosges Mountains, by C. Muller, 
and distributed in Schiffner’s Hep. Eur. Exsic. 361. 
MISCELLANEOUS NOTES 
Eocronartium muscicola, a fungus parasitic on moss.— Fitzpatrick 1 has 
recently published a detailed account of the life history and parasitism of this 
fungus, giving also some natural sized photographs of Climacium americanum 
bearing the mature fungus. Probably some of our readers have noticed this 
fungus as it occurs on a considerable number of species of mosses: the author 
obtained most of his material from Climacium americanum , but he finds that 
it has been collected also on Anomodon rostratus, Leskea obscura, L. polyantha, 
Thuidium delicatulum, T. minutulum, Amblystegium serpens , A. varium, A . ripar- 
ium, Brachythecium oxycladon, Climacium dendroides, C. Kindbergii, Entodon 
seductrix, Hypnum chrysophyllum, Plagiothecium Muellerianum, and Pylaisia 
intricata. It is interesting to note that the hosts, thus far reported, are all mem- 
bers of the two closely related families Leskeaceae and Hypnaceae. 
The mycelium of the fungus persists perennially in the moss, growing up 
through the stems and leaves as the new shoots develop, matting together the 
leaves and enveloping the growing point, and eventually forming a slender club- 
shaped or cylindrical, usually unbranched structure often with a somewhat 
enlarged base, and in larger mosses, like Climacium , sometimes reaching a length 
of 6 cm., commonly about 2 cm. The author publishes the name Eocronartium' 
muscicola (Fries) Fitzpatrick, synonyms being E. typhuloides and E. muscigena; 
the name muscicola having also been placed under the genera Clavaria, Pistillaria, 
and Typhula by various authors. 
As to the origin of the rust fungi the suggestion is made by the author: 
“Admitting that the rust fungi on ferns constitute a primitive type, it is 
carrying the argument only one step farther to suggest that the ancestors of 
these forms occurred on mosses. The Uredinales probably arose from forms 
similar to those now embraced in the Auriculariaceae, their high degree of speciali- 
1 Fitzpatrick, Harry N. The Life History and Parasitism of Eocronartium muscicola. Phy- 
topathology 8: 197-218. May, 1918. 
