Corrections IN NoMENCLATURE.—I. 
AsTRAGALUS SONNEANUS. A. Hookerianus, Gray, Proc. 
Acad. vi. 215 (1864), not of Dietr. Syn. iv. 1086 (1847). 
Phaca Hookeriana, T. & G. F]. i. 693 (1840). When Dr. Gray, 
in 1864, transferred this species from Phaca to Astragalus 
he was manifestly unaware of the existence of a Mexican | 
Astragalus already established under the name of A. Hooker- 
ianus which rendered his new homonymous combination 
untenable. I dedicate the species to the most unassuming 
but one of the most efficient of field laborers in Californian 
botany, Mr. C. F, Sonne. 
TRIFOLIUM OrTEGÆ. T. involucratum, Ortega, Dec. 93 . 
(1797); Willd. sp. iii. 1372 (1801), not of Lamarck, Fl. Fr. 
ii. 604 (1778). Species peculiar to the mountains of Mexico; 
though a number of different plants of the Pacific U.S. have 
been erroneously supposed to represent it, or at least to be 
referable to it. Until the publishing of the Index Kewensis 
all authors had erred in attributing to Willdenow rather 
than to Ortega the authorship of the name T. involucratum ; 
but the very much earlier use of the same name, by Lamarck, 
was not detected even by the authors of the Indez. 
SENECIO PoRTERI. S. renifolius, Porter, Fl. Colo. 83 (1874), 
not of Sch. Bip. Flora, xxviii. 50 (1845). S. Porteri is a rare 
species of the Colorado Rocky Mountains; the original S. 
renifolius, of the Caucasus. 
ERIGERON CONSOBRINUS. E. fraternus, Greene, Pitt. iii. 
162, not of Pitt. ii. 169 (1891). Miss Josephine Clarke, of 
. the Library of the Department of Agriculture, has courte- 
ously brought to my attention the error here corrected. 
