358 RYDBERG: NOTES ON ROSACEAE 
my monograph admitted five species and one variety, and my 
treatment in the North American Flora admits seven species. 
Fragaria canadensis and F. Terrae-novae are both reduced to forms 
of F. virginiana. Concerning F. canadensis the following remarks 
are found: ‘‘A form with the pubescence generally more sparing, 
the hairs on the scape being subappressed, is sometimes dis- 
tinguished. (F. canadensis Michx., in part.)’’ The first one who 
jn later years took up the name F. canadensis Michx. was Dr. 
N.L. Britton. Hewas followed by myself. Ido not know of any- 
body else who in print has ‘‘distinguished”’ F. canadensis from F. 
virginiana, i. e., pointed out the differences between the two. 
The plant characterized by us is not a plant with appressed or 
subappressed pubescence on the scape but one with spreading 
pubescence. The distinguishing characters given by us are the 
oblong-conic fruit and the narrower leaflets with shorter petiolules. 
It isarare plant and could be a hybrid between F. virginiana and 
F. americana, but the well-developed fruit, which is even longer and 
narrower than in F. americana, speaks against it. Besides, Pro- 
fessor Fernald has collected in the lower part of Quebec an entirely 
different plant, which looks much more like a hybrid between 
those two species. This plant is intermediate between the two 
but more like F. americana and is apparently sterile, a fact that 
speaks for a hybrid origin. In the Gray’s New Manual the fol- 
lowing remark is also found: “Another scarcely separable form 
has the hairs on both scapes and petioles sparse and subappressed. 
(F. terrae-novae Rydb.)’’ These characters are true but they are 
not the only ones. F. Terrae-novae has the large flowers of the 
western F. platypetala, the petals being almost twice the length 
of the sepals, while in F. virginiana they are usually about half 
longer than the sepals. F. Terrae-novae is about as distinct from 
F. virginiana as is Fernald’s own F. multicipita. The difference 
between F. Terrae-novae and F. multicipita is that in the former 
the leaflets are short-petioluled while in the latter they are 
sessile. The petals of F. multicipita are unknown. F. Grayana 
and F. americana are regarded as varieties of F. virginiana and 
F. vesca respectively. So they were regarded by Dr. S. Watson. 
The treatment in the New Manual of the Central Rocky 
Mountains is rather less satisfactory. Fragaria bracteata Heller 
