﻿132 Rydberg: Notes on Rosaceae 



the latter in the herbarium of Columbia University, in that of 

 the New York Botanical Garden, and in the United States 

 National Herbarium. All these specimens are apparently gland- 

 less, but a closer examination shows there are some minute glands, 

 mostly sessile, both on the pedicels and the hypanthium. They 

 represent a rather abnormal form belonging to the western so-called 

 R. strigosus, i. e., R. melanolasius Focke, and constitute the type 

 of Batidaea dacotica Greene. Fernald also cites Piper zSyg as 

 a specimen also approaching R. idaeus. This number belongs to 

 Rubus melanotrachys Focke. Fernald evidently overlooked the 

 difference in the pubescence of the inflorescence, which is pilose 

 instead of tomentulose. He also stated: "Often, too, shrubs 

 growing in shade show a strong tendency to lose not only the 

 glands of the calyx, but the white pubescence ordinarily char- 

 acteristic of the leaves." This is perfectly true and in both R. 

 idaeus and R. strigosus the leaves are sometimes almost without 

 tomentum. The two specimens cited, however, were a somewhat 

 unfortunate selection, for both Piper 2268 and Sandberg, Mac- 

 Dougal & Heller 259, belong to Batidaea peramoena Greene, which 

 should be separated from R. strigosus, at least as a variety. The 

 sepals are of a different shape, much narrower than in the eastern 

 R. strigosus. No typical R. strigosus with rather firm rugose 

 leaves, dark green above, is found in the Rockies or west thereof. 

 All the following species may be regarded by conservative bot- 

 anists as varieties of Rubus strigosus, though this as well as R. 

 arizonicus and R. melanotrachys must be regarded as distinct from 

 R. idaeus. Robinson and Fernald in the New Gray's Manual 

 adopt the name Rubus idaeus aculeatissimus Regel & Tiling for 

 R. strigosus Michx., which was unwarranted, for Regel and Tiling's 

 variety is the same as R. sachalinensis Lev.,* a species or sub- 

 species with almost dry fruit and limited to eastern Asia. 



Batidaea heterodoxa Greene is but a form of R. strigosus, and 

 one that is not uncommon with the upper leaves, simple and three- 

 lobed. It has nothing to do with Rubus Egglestonii Blanchard 

 or what Fernald regarded as R. idaeus anomalus Fries, of which it 

 is given as a synonym in Gray's New Manual. Batidaea elegantula 

 Greene is in my opinion a rather typical R. strigosus, while B. 



* See Focke. Bibl. Hot. 17": 210. 1911- 



