116 Rhodora [JUNE 
scarcely distinguishable from authentic Altai and Baikal material, 
except in their slightly shorter and broader rays. Others again closely 
match in their angulate-toothed leaves Tiling’s original specimens 
from Ajan (on the west side of Ochotsk Sea) of var. multicaulis Herder; 
while others have the cauline leaves even more developed than in the 
type of var. columbiensis. 
In the Newfoundland plant the unexpanded disk-corollas and the 
outsides of the lobes are deep orange, in the Shickshock plant usually 
orange-yellow; but in the latter region a single individual was found 
with both disk- and ray-flowers decidedly reddish. And, as already 
noted, in the plants of Newfoundland the heads are commonly discoid 
but sometimes radiate, while in the Shickshock area they are com- 
monly radiate but occasionally discoid. Exactly the same variations 
of the heads are found in Siberia, Ledebour explicitly saying in his 
description: “Capitula majora v. minora, saepissime radiata nee 
nisi rarissime discoidea. Ligulae plerumque aureae variant flavae 
et licet rarissime rubicundae."! In brief, Senecio resedifolius, long 
supposed to be restricted to the region from Alaska across Siberia, 
is now known in two extremely isolated regions, the Shickshock 
Mountains of Gaspé and the Long Range of Newfoundland, where 
in its numerous modifications it not only parallels but seems to 
exceed the Alaskan and Siberian plant. Miss Brackett's drawings 
(fig. 1) show only a few of the variations in eastern America. 
SENECIO PAUCIFLORUS AND S. INDECORUS.— Two of the most 
characteristic species of Senecio on the Gaspé Peninsula are strikingly 
different plants which, in his Monograph of the North and Central 
American Species of the Genus Senecio, are treated by Greenman? 
as a single species, S. pauciflorus Pursh. One of the plants, true S. 
pauciflorus (fig. 2), is in eastern Quebec confined to the alpine and 
subalpine chimneys and meadows of the Shickshock Mts. and to the 
calcareous terraces bordering the Straits of Belle Isle. North of the 
Straits of Belle Isle it is characteristic of the mountainous region from 
Cape Mugford to the northern limits of Labrador, while in western 
America it extends from near the Arctic Circle in Mackenzie, Yukon 
and Alaska to the mountains of Wyoming and the Yosemite region 
of California. In the field S. pauciflorus is at once distinguished by 
its thick and fleshy foliage, the few cauline leaves with blunt teeth 
1 Ledebour, Fl. Ross. ii. 632 (1844-46), 
? Greenm. Ann. Mo. Bot. Gard. iii. 91 (1916). 
