1899 ] BRIEFER ARTICLES 131 
the plant matches the original plate published by Michaux‘ with his 
description of Brachystemum verticillatum. Fortunately a portion of 
Michaux’s type specimen is preserved in the Gray Herbarium, and a 
careful comparison with that leaves no doubt that Mr. Eggleston’s 
plant isthe same. Another Vermont specimen collected by Robbins, 
anda number of specimens from more southern states possess the 
same characters as the Michaux plant, and with it represent a species 
fairly distinct from either P. muticum or P. T. orreyt. 
Brachystemum verticillatum was described by Michaux from the 
mountains of Pennsylvania and Carolina. It was soon transferred to 
Pyenanthemum by Persoon,? who merely accepted Michaux’s descrip: 
ton without comment. Pursh in his Flora, took up the name, modi- 
M In 1891 Otto Kuntze® took up the obsolete’ generic name Koed/za 
eee Setierred to it Michaux’s Brachystemum verticillatum, 
muticum, and % statement it is apparent that he meant Brachystemum 
Derticillaty Was merely following Dr. Gray in regarding that and &. 
itehnes. sy the same. In 1894, in their list of the plants of 
different 5 oe Irginia, Dr. Small and Miss Vail treated the plants as 
cum Michs “a Britton! there transferring Brachystemum muti- 
Benth.) ess Oellia. A. Zorreyi Kuntze (Pycnanthemum Torreyi 
so then recognized as a distinct species. In the Botan- 
*MIcux,, F], 9. 
»Flia: 6. pi, 37, 4 BENTH. Z. ¢, 330. 
5 DC. Prodr. 12: 190. 
’ The 60. K. Rev. Gen. 2: 520. 
Te is ]j 
ace '§ little reason to suppose that the name Aeellia will be generally 
ough 
* Pes, Syn. 2: 128, 
* BENTH. Lab, 328. 
sretsight Was P 
to Engle 
8 
Morncy Meth. 4o7, 
*Brrrp * 
©N in Smal! and Vail, Mem. Torr. Bot. Cl. qi 145. 
