204 BROOKLYN BOTANIC GARDEN MEMOIRS 
Solidago caurina Piper—North slope Mt. Hood, Aug. 7, 1914, 
1005. 
Solidago elongata Nutt.—Corvallis, July 29, 1915, 3244; Scotts, 
7 miles N. of Fort Klamath, Klamath Co., Sept. 20; 1912) Bee. 
Meinecke, Cr D 7. 
Solidago missouriensis Gray?’—Sumpter, Baker Co., Aug. 21, 1915, 
Jie Weir207- 
Solidago tolmieana Gray ?—Hood River, July 23, 1915, 3254. 
The life history of this species was first demonstrated by Clinton 
(Science N. S. 25: 289. 1907; Ann. Rep. Conn. Exp. Sta. 1906: 
320. 1907; 1907: 375. 1908). He successfully infected Solidago 
rugosa with aeciospores of Peridermium acicolum on Pinus rigida. 
The single collection of aecia listed above (1610) agrees with 
the description of P. montanum Arth. & Kern and was collected in the 
immediate vicinity of Solidago caurina (1605). The possibility of 
genetic relationship was made note of at that time. Hedgcock 
(Mycologia 4: 144. 1912; Phytopath. 3: 16. 1913) has also made 
similar observations and more recently (Phytopath. 6: 65. 1916) 
has cultured this Peridermium successfully on Aster conspicuus, using 
aecial material on Pinus contorta collected in Montana. Weir and 
Hubert (Phytopath. 6: 68. 1916) working independently from Hedg- 
cock, with similar aecial material, have also demonstrated by cultures 
that this Peridermium has its uredinia on both Aster and Solidago, 
having obtained infection on A. laevis geyert, S. canadensis and S. 
Missouriensis. 
Sydow (Monographia Ured. 3: 621. 1915) suggests that the form 
on Aster in North America is different from C. Solidaginis on Solidago 
and should either be united with the Asiatic C. Asterum (Diet.) Syd. 
or that it represents an unrecognized species having a different Pert- 
dermium as its aecial form. The culture work of Weir and Hubert 
(1. c.), however, shows that P. montanum is genetically connected with 
uredinia on both Aster and Solidago and does not lend support to 
Sydow’s view. . 
While the two species of Peridermium included here are widely 
separated as to range and are morphologically distinguishable, it 
seems best until further culture work is conducted to recognize but 
one American species. 
UREDINACEAE 
5. CALYPTOSPORA COLUMNARIS (Alb. & Schw.) Kiihn; Rab.-Wint. 
Fungi Eur. 3521. 1886. (Hedwigia 26: 28. 1887.) 
Aecidium columnare Alb. & Schw. Consp. Fung. 121. 1805. 
Calyptospora Geoppertiana Kiihn, Hedwigia 8: 81. 1869. 
