22 PITTONIA. 
C. HECATOPHYLLA. Cassia hecatophylla, DC. in Collad. l. c. 
124, c. 18. Native of islands of the Caribbean Sea. 
C. PATELLARIA. Cassia patellaria, DC. in Collad. l. c. 125, 
t.16. Isthmusof Panama and regions adjacent. 
C. CALYCIOIDES. Cassia calycioides, DC. in Collad. 1. c. 
125, t. 20, fig. B. Northern South America. 
C. ZSCHINOMENE. Cassia xschinomene, DC. in Collad. 1. c. 
127, t. 17. Native of the West Indies; perhaps represented 
in Breyne’s old plate 24, of the Centuriz; if so, then form- 
ing a part of the very complicated Cassia Chamecrista of 
Linneus. But the present species is evidently much nearer 
C. nictitans. 
New SPECIES OF SISYRINCHIUM. 
4S.LaNwcroisr. Densely tufted and very slender stems 3 to 
5 inches high, from a cluster of long slender rather wiry 
fibrous roots: leaves very narrowly linear, 2 to 4 inches 
long, erect, glabrous, closely and strongly about 5-striate: 
stems scarcely ancipital, rather subterete with a pair of 
strong keel-like angles, all parted in the middle into from 
2 to 4 slender peduncles each with a single small few- 
flowered spathe, its bracts equal or nearly so, acuminate: 
pedicels short, filiform, perianth large for so small a plant, 
blue (evidently pale), the broad segments alternately merely 
obtuse and abruptly apiculate-acuminate, and retuse with a 
triangular-subulate cusp: stamens and pistil short, scarcely 
half the length of the perianth: fruit not seen. 
In meadows about St. Martinville, Louisiana, 11 April, 
1892, Rey. A. B Langlois; said to be very common. 
“S. xEROPHYLLUM. Plant with a distinct though short 
erect or ascending rootstock bearing rather coarse densely 
