98 Rhodora [JUNE 
to have a name of its own, and I would designate it by a similar epithet 
descriptive of its upper leaf-surface :— 
Viola hirsutula, nom. nov. (V. villosa Nutt. and recent authors, 
not Walter; V. sororia LeConte and Eaton, not Willdenow). 
V. villosa var. cordifolia Nutt. has been a source of more or less 
confusion. Judging from the very full description in both Nuttall 
and Schweinitz, it was probably based on a hybrid between V. hirsu- 
tula and V. papilionacea, found in “dry woods on the banks of the 
Schuylkill near Philadelphia." Such a hybrid, from two stations 
now within the limits of that city, I have had growing for two seasons. 
'The plants were found in company with the two above named species, 
possess intermediate characters, and show much impaired fertility. 
But their hybrid origin is positively demonstrated by the behavior 
of their seedlings, which presented last summer, in strikingly diverse 
forms, the divergent characters of the parents. For example, some 
seedlings had the small leaves of V. hirsutula, others the large leaves 
of V. papilionacea; some bore purple capsules like V. hirsutula, 
others light green capsules like V. papilionacea; some produced the 
pale yellow seeds of V. hirsutula, others the almost black seeds of 
V. papilionacea. This bybrid has also been collected by Mr. W. 
DeW. Miller in Plainfield, N. J.; and by Prof. House in the District 
of Columbia, and was published by him in Rnopona viii. 121, as V. 
papilionacea X villosa. It should rather be designated :— 
V. hirsutula X papilionacea. (V. villosa, var. cordifolia Nutt.; 
V. cordifolia Schweinitz; V. villosa, var. cordata Torr., Flora i. 252, 
1824; the change in varietal name being plainly an inadvertence.) 
MippLEBURY CoLLEGE, Middlebury, Vermont. 
CATHARINAEA MACMILLANI. 
Epwarp B. CHAMBERLAIN. 
(Plate 74.) 
IN the spring of 1906 Miss A. L. Crockett of Camden, Maine, sent 
the writer a small package of mosses. On account of other duties, 
the specimens were not examined closely at the time. Last Novem- 
ber, however, when the subject was again taken up, it was found that 
