1915] Evans,— Notes on New England Hepaticae,— XII 117 
The gemmiparous form of C. macrostachya,is distinguished as var. 
propagulifera by Schiffner. He based this variety on a set of speci- 
mens collected by H. Paul at Bernau in Bavaria and distributed in 
Hep. Europ. Exsic. 547. Schiffner states that the gemmiparous 
stems are terminated by a rather broad bud, which encloses a dense 
cluster of Opuntia-like chains of gemmae. He adds that the gemmae 
themselves are unicellular and clavate, measuring about 18 X 8 y, 
that the leaves of the cluster are pointed and toothed in much the same 
way as the perichaetial bracts, and that underleaves similar to the 
bracts are likewise present. In No. 547 of the Yale herbarium most 
of the gemmiparous branches are very small (about 0.25 mm. in 
diameter), the leaves and underleaves are less sharply pointed and 
less toothed than Schiffner implies, and some of the largest gemmae 
measure 24 X 12 u. These slight differences, however, might well 
come within the range of variation to be expected. In the material 
from Bingham Pond, Salisbury, which is likewise gemmiparous, some 
of the branches with gemmae proliferate and revert to an ordinary 
vegetative condition. "When this takes place the gemmiparous leaves 
and underleaves become scattered along the elongated axis and show 
striking irregularities in shape, some of them being deeply divided 
into hair-like divisions. Here again the largest gemmae are about 
24 X 12 u, although many of them are of course considerably smaller. 
Both here and in the original Bavarian specimens the gemmae have 
slightly thickened walls and are occasionally vaguely angled. 
5. CEPHALOZIELLA SPINICAULIS Douin, Rev. Bryol. 40:81. 1913. 
On rocks. Mt. Carmel, Hamden, Connecticut (A. W. E., April, 
1908). Cathedral Rock, West Hartford, Connecticut (Miss Lorenz, 
March, 1914). No other localities can be cited at the present time. 
According to the very brief description of Douin this species differs 
from all other members of the genus in having the stems covered with 
numerous projecting cells forming blunt teeth. Nothing more is told 
about the plant except that it is known in sterile condition only and 
that the material upon which it was based was collected by the present 
writer. In looking through the specimens of Cephaloziella which 
were submitted to Douin for determination it was found that the 
material from Mt. Carmel, cited above, was named C. Hampeana 
(Nees) Schiffn., a part being referred to the forma typica and a part 
to the new variety spinicaulis Douin. The latter plant, therefore, 
which fully agrees with Douin's description, probably represents the 
type of C. spinicaulis. 
