132 Rhodora |JuLy 
canadensis; but the texture and general outline of the mature leaves, 
the lack of dense tomentum at flowering time, and the long narrow 
sepals suggest A. laevis. It is probably a hybrid of these two species. 
The specimen labelled P. Newmanniana seems to be a hybrid of A. 
Bartramiana with some other species. The acute leaf-base and 
general outline suggest A. Bartramiana, while the long petioles and 
the teeth suggest possibly A. laevis. 
In 1908 Britton ! described Amelanchier alabamensis from material 
collected by F. S. Earle and C. F. Baker three miles south of Auburn, 
Alabama. The writer has seen this material which was distributed 
by Earle and Baker, both the type specimen and also that which was 
sent to several other herbaria, but is still unable to form any satis- 
factory opinion regarding it. At flowering time the young leaves, 
hypanthium and sepals are like 4. canadensis, but the summit of the 
ovary is hairy. The mature leaves are not distinctive but are more 
like those of A. canadensis. Nowhere in any of the herbaria studied 
by the writer are there other specimens which will match these. Thus 
one is strongly forced toward the opinion that A. alabamensis is not a 
good species of the same grade as those with wide distribution, and 
that it is to be explained as a local hybrid or as a local environmental 
variety. Before this conclusion is finally reached however, a more 
extended search in the Southern States should be made, for this 
region is one from which little material of Amelanchier finds its way 
into the herbaria. 
1907 Blanchard? described Amelanchier saxatilis, and in the Gray 
Herbarium there are duplicates of the type (Blanchard, Rocky bank 
of Connecticut, Bellows Falls, Vt., near Depot, 1907, Set. 1, type). 
These plants are very difficult to understand, for they are not typical 
of any species recognized in this paper. "They may possibly represent 
a hybrid between A. laevis or A. canadensis and A. humilis or A. 
stolonifera. There is, however, a suggestion of A. Bartramiana about 
the plant, as seen in the dentation of the leaves, in the shape of the 
young fruit and of the calyx, and in the enlarged base of the style. 
This plant needs more study in the field. 
In 1908 Robinson ? described Amelanchier oblongifolia, var. micro- 
petala, a form with small narrow petals, from the Blue Hills in eastern 
1 N. A. Trees, p. 439. 
? Torreya, vii. p. 99. 
3 RHODORA, X. p. 33. 
