X 
86 Rhodora | [Max 
PYcNANTHEMUM pyenanthemoides (Leavenw.), n. comb. Tullia 
pycnanthemoides Leavenw., Am. Jour. Sci. xx. 343, pl. 5 (1831). 
Руспапіћетит Tullia Benth. Lab. Gen. et Sp. 328 (1834). Koelha 
pycnanthemodes Ktze. Rev. Gen. ii. 520 (1891).— By vote of the 
Vienna Congress the long established name Pycnanthemum Michx. 
(1803) is retained for this genus instead of the earlier but long over- 
looked Koellia Moench: (1794). 
MENTHA ARVENSIS L., var. glabrata (Benth.), n. comb. М. canaden- 
sis, var. glabrata Benth. Lab. Gen. et Sp. 181 (1833). M. arvensis, 
var. Penardi Briq. Bull. Herb. Boiss. iii. 215 (1895).— As already 
indicated by. Briquet, Mentha arvensis L. and M. canadensis L. are 
confluent, and the latter American extreme is treated as a narrow- 
leaved variety of the more broadly distributed M. arvensis. The var. 
glabrata, common across Canada, and locally southward into New 
England and Pennsylvania, and along the Rocky Mts., is generally 
well marked by its less branched smoother stem and smoother leaves, 
but it clearly intergrades with the other varieties of the species. 
GERARDIA PEDICULARIA L., var. ambigens, n. var., caule supra 
glanduloso-villoso ; pedicellis calycibusque plerumque villosis.— 
Stem glandular-villous above; pedicels апа calyx usually villous.— 
Wisconsin to North Carolina and Missouri. ‘Type collected at St. 
Croix Falls, Wisconsin, August 20, 1900 (C. F. Baker). Transitional 
between the typical G. pedicularia, with the stems puberulent above, 
and the more southern var. pectinata Nutt. Gen. ii. 48 (1818), which 
has the stems very villous and the calyx glandular-hispid. 
Vinurnum LENTAGO L., var. sphaerocarpum Gray, n. var. in herb., 
drupis sphaeroideis 7-9 mm. diametro.— Drupes spherical, 7-9 min. 
in diameter.— The original specimens thus labeled by Dr. Gray were 
collected in Norra Daxora, at Fort Abraham Lincoln, by Dr. У, 
Havard; but other material has accumulated which shows this small- 
and globose-fruited extreme to occur from New England to Wyoming. 
EUPATORIUM PURPUREUM L., var. foliosum, n. var., inflorescentia 
late corymbosa foliis bracteisque breviore.— Inflorescence broadly 
corymbose as in var. maculatum, but overtopped by the very long upper 
leaves and bracts.— The characteristic form of the species from 
western Newfoundland and the Gaspé Peninsula to northern Maine, 
extending westward to northern Michigan and Iowa. Type collected 
by the writer in a river-thicket at Van Buren, MAINE, September 18, 
1900. 
