Plante Lindheimeriane. 173 
interrupte multifloris fasciculis &pproximatis; bracteis ovatis 
acuminatis; calycis tubo valde obliquo postice saccato pedi- 
cillum bis terve excedente, lobis lanceolatis acuminatis mar- 
gine albo-villosis, superioribus ultra dimidium  coalitis. — 
Rocky prairies on the Cibolo and Pierdenales, growing 
sparsely. May, June (in flower.) — Caudex perpendicular, 
dilated below the summit into a globular tuber, of nearly an 
inch in diameter. Stem 2 to 3 feet high, simple, or sparingly. 
paniculate at the summit. Lower petioles nearly as long as 
the leaflets ; thelatter 9 or 3 lines wide. Spikes dense, one or 
two inches long. Flowers apparently pale purple, fully half 
an inch in length; the pedicels scarcely a line long. Calyx 
conspicuously glandular; the tube remarkably one-sided, 
nearly straight on the lower side, but strongly gibbous-saccate 
or almost calcarate on the upper! The free apices of the 
nine filaments are very short, all antheriferous ; five of them 
. Sspatulate, the four intermediate triangular and shorter. 
Ovary glabrous. Fruit not seen. 
> (594.) P. nypoama, Nutt., var. scaposa: pedunculis petio- 
los v. folia :equantibus, 1;—22 unc. longis. — Stony soil, hills 
on the Pierdenales, near Fredericksburg. April. (Western 
Texas, Mr. Charles Wright.) — Tuber globular or pointed 
upwards, sending forth a slender caudex, beset with membra- 
nous scales. From the Canadian River we have specimens 
gathered by Mr. Gordon, which are intermediate, as to the 
length of the peduncle, between the Texan plant and that 
described by Nuttall. 
373. P. rLormunpa, Nutt. in Torr. & Gray, Fi. 1. p. 
300. Prairies on Comale Creek. In black, clayey soil, 
New Braunfels, *growing in patches, many stems from the 
same base, forming a large and dense bush." June: — May 
not this rather than “P. obtusiloba (of which Mr. Wright has 
sent characteristic specimens from Texas,) be the P. tenui- - 
flora of Pursh and Nuttall ? 
374. ExseNHaARDTIA amorPHoiwes, H. B. K. Nov. Gen. 
& Sp. 6. p. 491, c SG Dhan M Lipi Ds p. 141. E. 
JOURNAL B. 8. N. JAN. 1850. 
