300 MALVACEAE. Lavatera. 



Li. insularis, "Watson. Low, cinereous-puberulent : leaves 7-lobed; the lobes roundish- 

 oval, \ erv obtuse and obtusely dentate : pedicels less tliau incli lonf^, sliorter than the tiower, 

 at lengtli detiexed : bractlets of involucel spatulate, almost distinct, rather sliorter than the 

 flowering and much shorter than the largely accrescent fructiferous calyx : petals spatulate- 

 obovate, emargiuate, inch and a half long, purplish, naked at base of claws : column gla- 

 brous : fruit nearly of the preceding, of about 10 carpels. — Proc. Am. Acad. xii. 249, & Bot. 

 Calif, ii. 437. — Corouados Islands near San Diego, S. California, Cleveland. 

 L. occidentAlis, Watson, Froc. Am. Acad. xi. 113, 124; Brew. & Wats. Bot. Calif, i. 83, 

 of Guadalupe Island off Lower California, differs from the last preceding (wliich may be a 

 form of it) in the oblong bractlets of involucel more united at base, and a moderately dilated 

 depressed-conical top to the axis of fruit. 



L. ven6sa, Watson, Proc. Am. Acad. xii. 249, coll. by Dr. Streets on San Benito Island, 

 Lower California, in incomplete specimens, i has somewhat similar leaves, but slender pedicels 

 (an inch or two long), oval bractlets of involucel nearly distinct and equalling the calyx, 

 smaller purple and dark-veiny petals, their claws with hairy tufts at base (in the manner of 

 the first species), and more compressed carpels with striate-nerved sides. 



4. CALLIRHOE, Nutt. (KaXXtppo'?;, the name of more than one mytho- 

 logical female.) — E. North American herbs, with mostly showy crimson-purple 

 or flesh-colored flowers. Cauline leaves palmately or pedately dissected ; stipules 

 free. — Jour. Acad. Philad. ii. 181 (on species destitute of involucel) ; Gray, PL 

 Fendl. 16, & Gen. 111. ii. 51, t. 117, 118.^ NuttaUia, Bart. Fl. X. A. ii. t. 62; 

 Hook. Exot. Fl. t. 171, 172. 



§ 1. Perennials, some perhaps biennials, with thick and farinaceous napiform 

 or fusiform root: mature carpels of rounded or subreuiform outline. 



* Carpels with small and deciduous beak or point, or none, even on the back and the thin 

 sides not rugose, at length often 2-valved : involucel 3-phyllous : calyx .5-lobed to the 

 middle : peduncles short, umbellately few-several-flowered : stipules small : root fusiform. 



C. triangulata, Gray. Roughish-pubescent, erect, 2 feet high : radical and lower leaves 

 ovate-lanceolate with deeply cordate base to deltoid or slightly hastate, crenate, rarely in- 

 cised or pedately cleft; upper cauline variously and often deeply cleft and the lobes narrow, 

 some pedately hastate : pedicels about the length of the flower : bractlets of involucel 

 spatulate, rather small, seldom equalling the deltoid-ovate obscurely 1-nerved calyx-lobes: 

 petals purple, three fourths inch long, the summit repand. — PI. Fendl. 16, Gen. 111. ii. 

 t. 118, f. 6, 7, & Man. ed. 5, 100. Malra trianr/ulata, Leaveuw. Am. .lour. Sci. vii. 62. M. 

 Howjhtonii, Torr. & Gray, Fl. i. 225, 681. Nattallia cordifolia, Nutt. Jour. Acad. Philad. 

 vii. 98. N. triangulata, Hook. .Jour. Bot. i. 197. — Sand)' barrens and prairies, Alabama and 

 N. Carolina to Indiana and Minnesota ; fl. summer. 



* * Carpels indehiscent, with rugose-reticulated back and sides up to the short and broad in- 

 flexed beak : involucel 3-phyllous, close to the .'i-parted calyx : sepals lanceolate, elongated, 

 3-5-nerved : peduncles elongated, 1-flowered : stipules conspicuous, OA-ate : perennial root 

 najjiform, large ; fl. summer. 



C. involucrata, Gray. Hirsute or even hispid : stems procumbent : leaves of rounded out- 

 line, palmately or pedately .5-7-parted or deeply cleft, and the mostly cuneate divisions in- 

 cisely lobed, the lobes oblong to lanceolate : peduncles surpassing the leaves : bractlets of 

 involucel linear to oblong, about half the length of the spreading calyx-lobes : petals com- 

 monly inch long and crimson-purple or clierry-red, varying to paler, the edge of the broad 

 summit erose-<lenticulate : carpels 18 to 2.5, pubescent externally or the beak hairy, at length 

 glabrate. — PI. Fendl. 15, 16, PI. Lindh. pt. 2, 159, & Gen. 111. t. 117; Meelian, Native 



1 This species has since been secured by Lt. Pond and bv Dr. Julir. Palmer, who.se much better 

 material fully confirms the characters upon which the species was based. See Greene, Pittonia, i. 261- 

 263, and Vasey & Rose, Contrib. U. S. Nat. Herb. i. 21. 



2 Add E. 6. Baker, Jour. Bot. xxix. 49. 



