37 
3. SIDALCEA Gray. 
Herbs, with rounded and mostly lobed or parted leaves, usually pur- 
ple flowers in a narrow terminal spike or raceme, naked calyx, a double 
column of stamens, styles as in Malva, and 5 to 9 1-seeded indehiscent 
beakless carpels. 
1. S. Neo-Mexicana Gray. Stems slender, 3 to 9 dm, high, pubescent or glabrous, 
at first simple, soon producing axillary flowering branches: radical leaves orbicular, 
5 to 9-lobed or incisely crenate, lower stem leaves deeply 7 to 9-parted, upper 3 to 5- 
parted, segments 3-lobed or those of the uppermost leaves entire: racemes many- 
flowered, with strict pedicels longer than the hirsute calyx, which has deltoid-ovate 
lobes: petals lilac, about 12 mm. long: carpels smooth and glabrous.—In the moun- 
tains of western Texas. The S, malveflora of most authors, from which species, how- 
ever, it is distinct, 
4. MALVASTRUM Gray. 
Herbaceous tufted perennials or shrubby, with flowers in narrow 
naked or leafy subpaniculate racemes, a 1 to 3-bracted or naked calyx, 
capitate stigmas, and 5 or more usually dehiscent carpels which are 
completely filled by the solitary seed. 
* Flowers yellow : calyx with 3 bractlets, 
1. M. tricuspidatum Gray. Suffrutescent and strigose-pubescent: leaves ovate- 
lanceolate or (below) deltoid-ovate, sometimes narrower and more oblong, serrate, 
acute, petioled: flowers in leafy spicate racemes or fascicled in the axils: bractlets 
linear: fruit depressed, of 10 or more reniform carpels with very deep sinus and tri- 
cuspidate (2 short cusps on the back anda much longer apical one).—Throughout 
southern and western Texas (south and west of the Colorado), 
2. M. spicatum Gray. Suffrutescent, subcanescent with close and minute stellu- 
lar pubescence (but no strigose pubescence on the stems): leaves deltoid or ovate, 
crenate-serrate above the base, petioled: flowers in oblong spikes, or the axillary 
ones reduced: bractlets lanceolate : carpels like the last, but with no cusps.—A Mex- 
ican species, but collected near Brazos Santiago, 
3. M. Wrightii Gray. Stems rigid from a more or less woody base, cinereous with 
lepidote-stellular pubescence : leaves oblong-ovate, dentate, obtuse, rounded or trun- 
cate at base, petioled: the foliaceous bracted flowers solitary and subsessile in the 
upper axils, and with rather large deep yellow petals: carpels coriaceous, smooth, 
hirsute at top where they are dorsally bigibbous and ventrally subulate-pointed.— , 
In southeast Texas, south of the Colorado, 
** Flowers brick-red or copper-red: carpels pointless. 
4. M. leptophylum Gray. Whole plant silvery canescent with a fine close lepi- 
dote (peltate scales) pubescence: stems slender, numerous from a woody base: lower 
leaves 3-parted and petioled, their segmentts and the sessile upper leaves narrowly 
linear or filiform: flowers few, racemose, brick-red : calyx with 2 or 3 setaceous cadu- 
cous bractlets: fruit depressed, of 9 or 10 tomentulose reniform beakless and pointless 
carpels coarsely reticulated on the sides.—Southwestern Texas, 
5. M. coccineum Gray. Herbaceous and low: both herbage and calyx canescent 
with close and fine almost scurfy stellular pubescence: leaves 5-parted or pedate: 
flowers in short spikes or racemes, with copper-red petals : carpels 10 or more, tomen- 
tulose-pubescent, rugose-reticulated, tardily and incompletely dehiscent.—In gravelly 
soil throughout western Texas, and extending down the Rio Grande. 
