378 Scientific Intelligence, 
the next): shrub, with three to five pairs of oblong leaflets, a gland 
between the lower pair; anthers all beakless 
flora L., : 
the Mexican frontier: shrub, with 3 to 8 pairs of oblong leaflets, 
and the tips of two or three of the lower anthers prolonged into a 
slender beak. 
(3.) No gland either between the leaflets or on petiole, 
. Wislizeni Gray, of Arizona: shrub, with 4 to 7 pairs of v 
small, coriaceous, obovate leaflets, large flowers, and linear flat 
pod, 3 or 4 inches long. 
the Lasiorhegma sub-genus—the pods of which open elasti- 
cally, and the sutural lines of the anthers are mostly woolly-pubes- 
cent—our representatives are all of the Chamecrista section. 
Sub-section Xerocalyx, so well marked by its rather rigid and 
striate, many-nerved sepals, has one tropical species, which has 
advanced into Texas, viz: ; 
C. calycioides DC., which is No. 2036 of Berlandier’s collection, 
found on the banks of the Rio Medina. 
Sub-section Leiocalyx, with thin sepals not striate, affords the 
following : 
(1.) Leaflets only 4 to 6 pairs: flowers rather large. 
C. Wrightii Gray, from Arizona: wholly glabrous, low, from 
woody perennial root-stock: veins of the narrowly-oblong leaflets 
nearly simple and inconspicuous. ; a 
. grammica Spreng., a West Indian species, of which we fi 
specimens from Key West: diffuse, soft-pubescent throughout; | 
the slightly inequilateral-oblong or cuneate-oblong and rather 
coriaceous leaflets lineate with the strong pinnate veins. _ : 
'. Greggit Gray, from Tamaulipas province, at some distance 
south of the Rio Grande: a rigid, shrubby species, with reticulate 
veins to the coriaceous leaflets. 
(2.) Leaflets 8 to 20 pairs. : ae 
C. nictitans L.: a widely-diffused annual, extending north oe 
New England, known by its small and subsessile flowers, wi 
sa 5 (or at most 6) anthers, . 2 Peper er 
Chameerista L., of about the same geographical praie 
i southe 
and even more variable, is an annual. or in some sout 
cinereous Texan forms, with the veining inconspicuous or obscure, 
of which Lindheimer’s 239 (coll. 2) is the most remarkable. on 
- procumbens L, (Herbarium, and of the Spec. Pl. in p® 
only the C. chameeristoides of ‘Colladon), a LOW ee 
tescent species, of tropical America, and, if rightly } 
or sout. 
C. procumbens: in his mono h he mentions the grr | 
‘+ procumbens as seemingly a rather larger variety, wit vai 
stipules and flowers, and longer pedicels, and cites the latte 
