240 BOTANICAL GAZETTE [SEPTEMBER 
Joun K. Smati: The relation between the genera Thysanella 
and Polygonella as shown by a hitherto unobserved character— 
Thysanella fimbriata, the only representative of the genus, has 
persistently and apparently without reason been referred to the 
genus Polygonum. Its habit and morphology does not suggest 
Polygonum at all but strongly resembles that of Polygonella. The 
floral structure in Thysanella approaches more closely the con- 
ditions we find in Polygonella than anything known to exist in 
the genus Polygonum. 
Another character possessed by both the genera in question, 
and one never mentioned in this connection, is the internodal 
branching. In all other members of Polygonacee the branches 
arise from the nodes; in Thysanella and Polygonella the branch 
or branchlet, as the case may be, is united to its primary axl 
often to beyond the middle of the internode. 
Joun K Smart: An apparently undescribed species of Prunus 
from Connecticut—This species is related to Prunus maritima and 
occurs in the immediate neighborhood and under precisely 
the same conditions. It is lower than the beach plum, more 
slender and delicate in habit, maturing its fruit earlier and 
losing its leaves earlier in the fall. The following difference 
from P. maritima may be noted: (1) the leaf is orbicular 
instead of elliptic or oblong; (2) the flowers are smaller with 
shorter and broader calyx-segments; (3) the drupe is smaller, 
always globose, ‘and short pediceled; (4) the stone is smaller 
and more turgid (nearly as thick as broad) and pointed only at 
the base, while that of the common beach plum is flattenet. 
more elongated, and pointed at both ends. 
Joun K. Smart: The flora of the summits of King’s 
and Crowder’s mountain, N. C—The following phenom 
be noted: (1) the rare fern Asplenium Bradleyi is very 
on the slopes and extends to the higher points ; (2) n° te 
large forest trees appear as small shrubs although the altitet | 
not great, and in this extremely stunted state produce abunda 
ena may 
common 
normally 
mountain —— 
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