121 
In dry soil, Tuscarora Mountain, Huntingdon Co., 1845 (Porter); 
Two-Top Mountain, Franklin Co., Penn., 1846 (Traill Green) ; 
Mountains of Clinton Co., Penn., 1842 (McMinn); Peaks of Otter, 
Virginia (Britton). May-June. 
Differs from. A. venosum, L., in its more elongated, villous- 
pubescent leaves, stouter stem, larger heads and very pilose and 
glandular, principal bracts of the involucre. 
Differs from H. Marianum, Willd., in its entirely glabrous, leaf- 
less or very rarely 1~2-leaved stem, larger heads and _ pilose- 
glandular involucre. 
Botanical Notes. 
Note Explanatory—Several wide-awake botanists have noticed 
a mistake in nomenclature made in my article on “ Orchids” in 
the February number of the BULLETIN, and uttered remonstrances. 
It is a good sign to see that innovators are held responsible for a 
strict application of their own principles, and I am quite ready to 
confess it when I go astray. On page 33, Cathea, of Salisbury, is 
substituted for Calopogon, of Robert Brown. This is entirely 
wrong if we follow the rules recently adopted at Rochester and 
accept the Species Plantarum of Linnzeus of 1753 as our start- 
ing point. The name in that case should be Limodorum tuberosum, 
LAap. Pi. 950(175 3). The mistake in the text arose from a /apsus 
emendationis. That article was written before the Rochester meet- 
ing, and designed as a paper to be read before the A. A. A. S. 
Botanical Club. At that time I had taken Linnzus’ first edi- 
tion of the Genera (1737), as my starting point for genera, and 
under that rule Cathea would be correct. Unfortunately in the 
revision of the paper for the BULLETIN, I neglected to make the 
Proper correction for this genus, although it was done in other 
parts of the same paper. 
A word further may be said in regard to Limodorum. The de- 
Viation from the Linnazan name seems to have began with Swartz 
in 1799 (Act. Ups. vi. 78), who adopted it from Tournefort. He 
was followed by Willdenow in 1805 (Sp. PI. iv. pt. i. 105), who 
called our plant Cymbidium pulchellum, and applied the name 
Limodorum mainly to various species of Epidendrum, which he sep- 
arated from that genus. Subsequently L. C. Richard applied this 
