Plante Lindheimeriane. 9 
what hairy and often incurved. ((. bifrons, Don, has 
rounded petals.) Galveston to the Brazos. June, July. 
57. Lupwiera uirtecia, Raf.; Torr. & Gr. l.c. Houston. 
58. L. LINEARIS, Var. PUBERULA: caule ramosissimo angu- 
lato foliisque junioribus minutim puberulis ; lobis calycis tri- 
angulari-lanceolatis acuminatis tubum «quantibus capsula 
elongato-turbinata subpedicillata dimidio brevioribus ; petalis 
flavis conspicuis. — Prairies and road-sides, Houston. June, 
September. Also in Alabama, Louisiana, &c.; these char- 
acters gradually shading away into the ordinary L. linearis, 
in its branching forms, so that we cannot consider it as a dis- 
tinct species. 
59. Jusstma pecurrens, DC. Houston, &c. 
60. Gaura sinuara, Nutt. Steep river-banks, &c., west 
of the Brazos. August. 
61. Gaura LinpHermertr (n. sp.): perennis, erecta, vir- 
gato-ramosa, strigoso-pubescens vel hirsuta ; foliis infimis 
spathulatis lyrato-pinnatifidis sinuatisve, caulinis sessilibus lan- 
ceolatis acutis sinuato-dentatis vel undulatis, supremis plerum- 
que integris ; bracteis ovato-lanceolatis acuminatis scariosis 
caducis ; calycis tubo ovarium sessile equante segmentis (in 
alabastro hirsutis) mulio breviore ; petalis 4 spathulato-rhom- 
boideis breviter unguiculatis subadscendentibus staminibus 8 
styloque deflexis paulo brevioribus ; nuce tetraquetra circum- 
scriptione ovali utrinque acuta, faciebus usque ad medium 
carinato-costatis fere levigatis. — Prairies from Houston to the 
Brazos, flowering from April to May, and through the summer. 
In the botanic garden of Harvard University, where it is cul- 
tivated from seeds collected by Mr. Lindheimer, it also flowers 
through the whole summer, and proves to be a very showy 
and elegant species. It attains the height of from 3 to 6 feet, 
and its copious racemose branches produce a long succession 
of blossoms which are of a large size for this genus. The 
petals, which are often three-fourths of an inch long, are pure 
white changing to rose color ; the calyx is reddish. Flowers 
always tetramerous and octandrous. This is probably the 
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