43 
1. M. palmata Mench. Flora! leaves usually more or less white with purplish 
veins: calyx-lobes ovate-lanceolate : carpels glabrate, nearly equaling the connivent 
calyx.—Collected near Brazos Santiago by Mr. Nealley, and somewhere in southern 
Texas by Charles Wright. 
11. PAVONIA Cay. 
Shrubs or rarely herbaceous, with petioled leaves, usually solitary 
flowers on axillary peduncles, a 5 to 15-bracted calyx, 10 styles, and 5 
one-ovuled dry crustaceous obtuse carpels. 
1. P. lasiopetala Scheele. A low shrubby plant with velvety pubescence: leaves 
cordate-ovate, sharply and irregularly dentate, 2.5 to 3.5 cm. long, the petiole nearly 
as long: flowers handsome, rose-colored, 3 to 4 em, in diameter, the petals sparingly 
pubescent: carpels barely united at base, obovate or rounded, naked or sometimes 
with 3 awns. (P. Wrightii Gray.)—Throughout southern and western Texas. A 
beautiful and showy plant, producing an abundance of rose-colored blossoms through- 
out the season. 
12. MALVAVISCUS Dill. 
Shrubs, with usually rounded and obscurely lobed leaves, axillary 
peduncles bearing single showy blood-red or scarlet flowers, calyx with 
7 to 12 persistent linear bractlets, a long-exserted stamen-tube, 10 styles, 
and 5 one-ovuled carpels connate into a depressed-globose grooved 
berry-like fruit. 
1. M. Drummondii Torr. & Gray. Stem tall and branching, minutely tomentose 
(as are the somewhat velvety lower leaf-surfaces) : leaves broadly cordate, somewhat 
3-lobed, coarsely and erenately toothed, 5 to 6.5 cm. long and about as broad : flowers 
solitary on axillary peduncles or several together on short flowering branches: bract- 
lets somewhat spatulate, nearly as long as the calyx and erect : stamen-column twice 
as long asthe corolla: fruit searlet.—From the Rio Grande to the Colorado and north- 
eastward. A very handsome plant, known as “ may-apple.” The scarlet fruit, pro- 
duced in late summer, is eaten both raw and cooked. 
13. HIBISCUS L. (RosE-MALLow. ) 
Stout herbs or often shrubby, with large and showy axillary and 
solitary flowers, a many-bracted eal yx, astamineal column antheriferous 
much of its length and naked at summit, 5 capitate and spreading 
stigmas, and a 5-celled loculicidal many-seeded pod. 
1. H. cardiophyllus Gray. Low and rather stout, 25 to 50 cm. high, tomentose, 
from a woody perennial root: leaves broad cordate, crenulate-dentate, obtuse or 
acutish, velvety above, very densely white-tomentose beneath, 3.5 to 5 em. or more 
broad: peduncles equaling or exceeding the leaves: bractlets 9 or 10, conspicuous, 
spatulate-lanceolate, tomentose, about as long as the broadly lanceolate calyx-lobées : 
petals over 2.5 em. long, spreading, deep rose- purple, exceeding the stamen-column : 
pod glabrous, shorter than the calyx, with puberulent seeds.—Rocky hill-sides, on or 
near the Rio Grande, from near its mouth to the Pecos and perhaps further west, 
San Diego is the station most distant from the river so far as reported. 
2. H. denudatus Benth., var. INVOLUCELLATUS Gray. Stems suffruticose, 3 to 
6 dm. high, much branched, very tomentose : leaves broadly ovate or nearly orbicular, 
rounded or obtuse and dentate above: peduncles shorter, 6 to 24 mm. long: bractlets 
5 to 7, inconspicuous, setaceons, about the length of the calyx-tube: calyx-lobes 
lanceolate: petals light purple, about 2.5 em. long: pod shorter than the calyx, with 
