202 Rhodora | [OcroBER 
organs of fructification are placed directly on the filament, radiating 
from one spot; the oogonia are much more oblique, often concave 
inside. When there are two oogonia and one antheridium, there is a 
certain resemblance to V. geminata; but the slender radiate pedicels 
make it amply distinct; the forms with many oogonia and antheridia 
are quite unlike anything else. The largest number of pedicels ob- 
served in one group is twelve; four bearing antheridia, eight oogonia. 
MALDEN, MAssagHusetts. 
EXPLANATION OF PLATE 76. 
Fig. 1, Vaucheria longipes. 
Fig. 2, V. Gardneri, group of four oogonia and one antheridium. 
Eg S8 “ = group of two — * whe gic a 
THREE PLANTS FROM MAINE. 
Ora W. KNIGHT. 
Durina the fall of 1906 while collecting along the shore near Otter 
Cliffs, Mount Desert Island, I found a very peculiar form of Juniperus 
horizontalis Moench, with lobed fruit, growing in an extensive patch 
by itself, while elsewhere the typical plant prevailed. As this plant 
seems worthy of a name I propose to call it:— 
JUNIPERUS HORIZONTALIS Moench, forma lobata, forma nov. 
Characters :— differs from J. horizontalis in having more elongate 
fruit which is strongly two-, three- or even four-lobed at the apex. 
The fruit when mature is pale green in color, slightly tinged with blu- 
ish, or occasionally pale greenish blue. Type locality: rocky cliffs 
along shore, Otter Cliffs, Mount Desert Island, Maine. Type No. 
5311 O. W. K., October 3, 1906. 
For two seasons I have had under observation a very peculiar 
hybrid Pyrus whose exact affinities were open to some slight doubt 
at first, but as the question now seems satisfactorily settled I propose 
to call it:— 
Pyrus Americana X arbutifolia, comb. nov.! 
1[Hybrids ascribed to the same parentage have been observed in cultivation. See, 
for example, Schneider, Ill, Handb, d. Lanbholzk. i, 677.— Ed.] 
