939 Plante Lindheimeriane. 
t S. Ropert, Torr. & Gray. Fl. 2. p. 444. , Rocky hill- 
tops, between the Upper Guadaloupe and the Pierdenales, 
and in open Post-Oak woods. October. 
446. Lerta nurans, DC. Prodr. T. p. 49. Cedar woods, 
in rocky soil, New Braunfels. March. 
441. ArocoN aRaciLIs, D C.! Prodr. 1. p. 18. In patches, 
on high, rocky prairies, New Braunfels. April. — Larger in 
all its parts than the ordinary A. humilis, and perhaps to be 
distinguished from it. 
448 (& 650). PiwARoPAPPUs roseus, Less. Syn. p. 143; 
DC. Prodr. 5. p. 99. Troximon Reemerianum, Scheele in 
Linnea, 99. p. 165. High, rocky prairies, between Bexar 
and New Braunfels. April. Ligule white, a little reddish 
on the back. Roots penetrating very deeply. 
(651.) Lyeopesmia APHYLLA f.'Texawa, Torr. & Gray, 
FI. 2. p. 485. Calcareous soil, New Braunfels. May. — 1t 
often bears a tuber at the apex of the long root. The margi- 
nalachenia are more or less attenuated upwards, as is also 
the case in the Florida plant. 
*,* No. 331, “ Linum Boottii y. rupestre, p. 155, is cer- 
tainly a distinct species, as Dr. Engelmann had stated. It 
may be characterized as follows : — : 
337. Linum nuPEsTRE (Engelm. ined.): perenne, glaber- 
rimum ; caulibus e radice lignescente plurimis strictis gracili- 
bus (1—2-pedalibus) striato-angulatis superne corymboso- 
panieulatis; foliis lineari-subulatis mucronulatis; glandulis 
stipularibus conspicuis post lapsum foliorum persistentibus ; 
pedicellis calyce subbrevioribus; sepalis ovatis cuspidato- 
acuminatis margine glanduloso-ciliatis petalis flavis multoties 
brevioribus; filamentis sterilibus dentibusque plane nullis; 
stylis a basi discretis; capsula ovato-globosa calycem æquanti- 
bus, loculis bilocellatis. — Growing from the crevices of naked 
rocks, New Braunfels, also gathered at Comanche Spring, 
