Plante Lindheimeriane. 163 
February; just beginning to blossom. Stems a foot long. 
Leaves one or two inches broad ; the soft pubescence appear- 
ing as if deciduous with age. Calyx deeply 5-cleft; the 
lobes half an inch long. ‘The expanded corolla about two 
inches in diameter. Stamineal column stellate-hairy. Styles 
17-—18, clavate at the tip; the stigmas truncate rather than 
capitate. Ovules two or three in each cell. Fruit not seen. 
355. Sipa Fiticauis, Torr. & Gray, Fl. 1, p. 232. S. fili- 
formis, Moricand, Pl. Nouv. Amer. p. 38, t. 25. High and 
dry prairies and sunny declivities, New Braunfels, &c. June, 
August. — Prostrate, in patches, producing very numerous 
slender and branching stems from a perennial and somewhat 
ligneous root. These, when young, are beset with long, 
spreading hairs, which are so slender that they often escape 
notice, and are also deciduous from the older stems. Hence 
our Texan plant is doubtless the S. filiformis of Moricand, 
gathered at Tampico by Berlandier. Moricand’s name is a 
little the earlier published; but it appears from Steudel that 
there is a prior S. filiformis of Jacquin, which has been over- 
looked.? 
(583.) S. pHysocatyx (sp. nov.): caulibus e radice car- 
nosa crassa plurimis decumbentibus ramosis strigosis; follis 
carnosulis ovato-oblongis crenato-dentatis basi 5—7-nerviis 
1 Sida anomala 8. Mexicana, Moricand, l. c. p. 36, t. 24, also from Tampico, is 
S. fasciculata, Torr. g Gray, Fil. 1, p. 231, which has recently been gathered in 
Western Texas, by Mr. Wright. The corolla, in dried specimens, is pink or rose- 
color, as is also said by Moricand, and the short, tufted stems spring from a stout pe- 
rennial root. Another species, indicated by Dr. Engelmann, I know only from a 
fragment, namely : — 
Sipa HETEROCARPA, Engelm. Mss.: “stellato-pubescens; caule erecto ramoso; 
foliis basi subcordatis obtusis crenato-dentalis, inferioribus lanceolatis, superioribus 
linearibus; tubercule subbasi petioli subspinoso; petiolis brevibus stipulas setaceas et 
pedicellas solitarias s. fasciculatas superantibus ; carpellis 5 nigris divaricato-birostratis 
apice pubescentibus latere tenuiter rugulosis, dorso membrana tenui evanescente clau- 
sis.—Road-sides, waste places, Houston, Texas, with S. spinosa. Annual? Flowers 
in August and September. Distinguished from S. spinosa by the narrower dentate- 
crenate (not xerrat:) leaves, and smaller black (not light brown) carpels, rugulose 
(not lacunose-reticulated) on the sides, with a prominent point on the back, broader, 
shorter, more divaricate, not erect beaks. The seed escapes through the back, not 
through the regular opening at the top.” 
