410 Vermischte neue Diagnosen. 
remains of antennarias but the fully formed and mature stolons with 
their foliage. I made specimens of these leafy stolons, for the foliage 
was clearly that of no species I had seen before. Then eleven years 
later, being again in the region in the beginning of May, 1909, I ob- 
tained the fine flowering specimens of both sexes, which answer to the 
diagnosis given above. As an ally of A. neglecta this one differs from 
all others known in this one other particular, that the male plants are 
distinctly taller than the female, their average height in the specimens 
before me being 6!/, inches, that of the females 5 inches; also the two 
come into flower at the same time. The habitat of A. erosa is not the 
low and level prairie. It occupies the northward slopes slight elevations 
toward the woodland borders between Odin and Sandoval. 
990. Antennaria longifolia Greene, l. c., p. 79. — Habitu praecedentis 
sed folia longiora, usque bipollicaria et ultra, infra medium magis 
attenuata, perinde quasi subpetiolata. Capitula plantae femineae in 
modum A. neglectae subracemosa. Pappi setae maris apice vix incras- 
satae. — Known only from western Missouri, from which region it 
has been distributed to herbaria by B. F. Bush and by K. Mackenzie, 
chiefly within the limits of Jackson County. These collectors have usu- 
ally sent it out with only the generic name on the labels, as if it had 
not been found identifiable with any published species; yet no. 12 of 
Mr. Bush, as distributed from Grain Valley, of May 7, 1899, he had la- 
belled A. neodioica as to the female plant, while the male (his no. 6) 
from the same place and of the same date, is labelled A. campestris; nor 
is this all which the labels bear. That for the female plant informs us 
that it is „common in woods“, that of the male says, „common on 
prairie.“ Neither of the sexes bears any likeness to either campestris or 
neodioica. Very fair specimens of plants of both sexes were distributed 
by Mr. K. Mackenzie, in 1899, from Hickman’s Mills, the male from 
„Sandy woods*, the female from „dry prairies“; so that, as we should 
suppose, the two sexes grow together both in woodland and on prairie. 
Mr. Mackenzie did not assign any specific name to his plant as distri- 
buted, but in the Flora of Jackson County it appears under the name 
A. campestris, but, with Mr. Rydberg's description of that very different 
species altered as to height of stem and length and shape of leaves — 
and very much altered, too — so as to let this tall long-leaved plant 
into the book under that name. ; 
991. Antennaria Nebrascensis Greene, l. c. p. 80. — Affinis A. 
neglectae, sed folia dimidio minora, superne multo magis tomentosa, in- 
dumento tardius evanido vel interdum, ad margines praecipue, per- 
manente. Pedunculi plantae femineae 5-unciales; capitula 5 in summo 
pedunculo subsessilia; squamae basi fuscae, apice lacteae, obtusae, in- 
tegrae. — Species known only from near Hershey, in western Ne- 
braska where they were collected by Mr. C. D. Mell, 5 May, 1903. 
The specimens are excellent, though of the tertile plant only. The 
habitat lies quite beyond the region of low alluvial prairie, and is really 
