27J- BOTANICAL GAZETTE. 



Pileus corky, dimidiate, sessile, subdecurrent, hairy, zoneless, 

 brownish-ferruginous, becoming pale, the margin acute; pores rather 

 large, varying from rotund to angular, colored nearly like the pileus 

 or when old becoming brown ; substance wood-color. 



Dead trunks of cottonwood trees, Popiilus monilifera, P. angulata, 

 etc., Dakota. C. W. Irish. 



Phyllosticta Astragali. — Spots none or indefinite ; perithecia 

 numerous, often occupying both surfaces of the leaf,. 007-00 1 1 of an inch 

 in diameter, rupturing the epidermis and partly covered by it, black, 

 opening by a minute circular aperture ; spores oblong or oblong-fusi- 

 form, colorless, .0005 — .00065 of ^^^ •^''ch long, .00012 broad. 



Living, languishing or dead leaves of species of Astragalus. 

 Canada. Prof. J. Macoun. 



The fungus appears to kill the leaves. The spores sometimes 

 have a faint semblance of a central transverse septum, which is ap- 

 jiarcntly produced by the retraction of the endochrome toward each 

 end. 



Melanconium Typh^.— Nucleus very minute, dot like or nar- 

 rowly elliptical, at first covered by the epidermis which at lengtli 

 ruptures either irregularly or longitudmally ; spores oblong-fusiform, 

 black, .0004 — 0005 of an inch long, .00016 broad, somewhat persist- 

 ently attached to their sporophores. 



Dead leaves of Typha angustifolia. Charlotte, Vermont. June, 

 C. G. Prm^le. 



This fungus is somewhat anomalous both in its minute size and 

 in the persistent attachment of the spores to their sporophores, yet it 

 appears to belong to the genus to which it is here referred. 



.^ciDiUM POLYGALINUM. — Spots yellowish, indefinite, some- 

 times occupying the whole leif; peridia hypophylloiis, crowded or 

 scattered, short, the margin crenulate lacerate ; spores subglobose, 

 .0008 — .0011 of an inch long. 



Living or languishing leaves of Polygala Senega. Ann Arbor, 

 Michigan. Prof. V. N. Spaidding. 



The ^cidium in our specimens is associated with Septoria 

 consocia. The spores are whitish, but probably in tne fresh specimens 

 they are yellow or orange. 



tEcidium Xanthoxyli.— Spots suborbicular, greenish-yellow; 

 peridia short, hypophyllous, crowded ; spores subglobose, .0009 — 

 .001 of an inch in diameter. 



Living leaves and petioles of prickly ash, Xanthoxylum Amcri- 

 caniim. Iowa. E. IV. Hohvay. 



The spores in the dried specimens are whitish, but they are 

 probably yellow or orange in the fresh state. 



Puccini A Pringlei. — Spots small, numerous, suborbicular, pur- 

 plish on the lower surface of the leaf, concealed by the sori on the 

 uj^per surface ; sori epiphyllous, rarely hypophyllous, large, rather 

 compact, occupying the whole spot, blackish-brown ; spores oblong 

 or subelliptical, slightly constricted at the septum, obtuse or subacute, 



