300 MALVACE^. Lavatera. 



L. insularis, Watson. Low, cinereous-pubenilent : leaves 7-lobed ; the lobes roundish- 

 oval, very obtuse and obtusely dentate : pedicels less than inch long, shorter than the flower, 

 at length deflexed : bractlets of involucel spatulate, almost distinct, rather shorter than the 

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

 obovate, emarginate, 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. — Coronados Islands near San Diego, S. California, Cleveland. 

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

 of Guadalupe Island off Lower California, differs from the last preceding (which 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. VENOSA, Watson, Proc. Am. Acad. xii. 249, coll. by Dr. Streets on San Benito Island, 

 Lower California, in incomplete specimens, ^ 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. CALLtR-HOE, 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, IIS.^ Nuttallia, Bart. Fl. N. 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 subreniform 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. Malca trianrjulata, Leavenw. Am. .lour. Sci. vii. 62. M. 

 Houghtonii, Torr. & Gray, Fl. i. 225, 681. Nuttallia cordifolia, Nutt. Jour. Acad. Philad. 

 vii. 98. N. triangulata, Hook. Jour. Bot. i. 197. — Sandy 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 .5-parted calyx : sepals lanceolate, elongated, 

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

 napiform, 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 hinceolate : 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 cherry-red, varying to paler, the edge of the broad 

 summit erose-denticulate : 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; Meehan, Native 



1 This species has since been secured by Lt. Pond and b_v Dr. Edw. Palmer, whose much better 

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

 26:J, and Vasey & Rose, Contrib. U. S. Nat. Herb. i. 21. 



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



