194 BOTANICAL GAZETTE [SEPTEMBER 
authenticated specimens of C. floridana they vary from 7 to 13, 
and had these specimens been younger, it is safe to surmise, 
leaves with fewer leaflets would have been found, an inference 
amply supported by the development in related species. 
Regarding the supposed assurgent habit of C. Smallii (a species 
not only distinguished in the field, but called to scientific notice 
by Mr. A. H. Curtiss), it may be said that the main stems bear 
evidence of being prostrate except near the tip. This is shows 
not only by the curvature and position of the leaves and pedun- 
cles, but by the almost constant presence of clinging particles 
of sand which adhere, even in the type specimens, to the lower 
surface of the stem, and are lacking upon the uppet surface, 
This position of the stem is fully confirmed by field notes 
kindly furnished by Mr. Curtiss. The assurgent character |s, 
therefore, confined to the leaves (which are said to be somewhat 
ascending but less erect than in 7. ambigua), the peduncles, and 
the growing tips of the stems. On the other hand, specimens 
of C. floridana, although said to have prostrate stems and leaves, 
give by no means the impression of a closely prostrate plant, 
an idea which is at once conveyed by specimens of T. cluyw 
phylla. (nthe absence of more telling morphological features 
the two species C. floridana and C. Smallii are here united. 
: nee kes s rth’s 
Miss Vail is certainly in error in interpreting yee 
T. angustissima, her characterization evidently being peer 
co 
Mr. Curtiss’ plants so named. Shuttleworth’s typ® ii 
on the Miami river by Rugel, is in the Gray herbarium, es : 
clearly a linear-leaved form of 7. purpurea Pers. with whic os 
shares the characteristic small flowers, of which one OF hi 
axillary, and the rest borne in a very slend ~ 
the other hand Curtiss’ nos. 584 and 5708, 
appear to be nothing but smoothish narrow-leaved : speci 
not differing by a single morphological character ee sat 
value. In her key (p. 26), Miss Vail distinguishes “ad 
(her Cracca angustissima) from T. ambigua on the Bre (p. 32) 
it is erect, and has linear leaflets, but in her description P 
it is characterized as prostrate. 
just me 
