﻿16 PLANTS FENDLERIANJE. 



On the Arkansas and the Cimarron. This handsome species I have had in cultivation 

 (from seeds gathered by Col. Fremont) for several years in the Botanic Garden, Cam- 



1. MALVA, Tourn., Linn. (excl. sp.) 



Involucellum triphyllum, persistens. Petala obcordato-biloba. Tubus stamineus simplex, filamenlis sin- 

 gulatim exserentibus. Styli filiformes introrsum stigmatosi (hirtelli). Ovulum in loculis solitarium, peritropo- 

 adscendens. Capsula depressa, polycocca ; carpella rotundato-reniformia vel cochleata, omnino mutica, 

 semiui conformia, indehiscentia, ab axi centrali secedentia. Semen reniforme, loculum implens. Embryo 

 arcuatus vel semicircularis : radicula infera. — Herba: gerontogea; ; floribus purpureis, roseis, seu albis. 



M. kotdndifolia, Linn., is extensively naturalized in North America. 



M. boeealis, Wallm. (vide supra No. 75), has doubtless been brought from the Old World also. 



M. malachroides, Hook, fy Am. Bot. Beech. Suppl., from California, of which the fruit is unknown, is 

 probably of a different genus. 



M. Le Contei, Buckley, in Sill. Jour. 45. p. 176, = Pavonia Le Contei, Torr. Sr Gray, ined., nearly allied 

 to P. hastata, Cav. 



2. CALLIRRHOE, Null.. 



* Involucellum nullum, vel 1 - 3-phyllum persistens. Petala cuneiformia, truncata, apice srepe eroso-denti- 



culata. Tubus stamineus, styli, ovula, etc., ut in Malva. Carpella plurima, in rostrum nudum breve eras- 

 sum pi. m. incurvum seu rectiusculum desinentia, clausa, nunc tarde dehiscentia, intus processu ligulreformi 

 dorsali infra rostrum cavum aucta ! Semen subreniforme. Embryo arcuatus : radicula infera. — Herbae 

 Boreali-Americanse, perennes, humiles; caulibus e radice napiformi crassa adscendentibus aut procumbenti- 

 bus ; floribus sspius longe pedunculatis purpureo-rubris vel incarnatis. 



Callirrhoe, Nutt. in Jour. Acad. Philad. 2. p. 181. 



Nuttallia, Dick ; Bart. Fl. N. Amer. 2. t. 62; Hook. Exot. Fl. t. 171, 172. 



Malva? spec, Torr. fr Gray, Fl. I. p. 225. 



§ 1. Malvoide.e. Involucellum ad basin calycis triphyllum : carpella suborbiculata, rostro et processu 

 interno parvo inconspicuo. 



1. C. triangulata: hirto-pubescens ; radice tuberosa ; caulibus adscendentibus; foliis triangulatis vel 

 hastatis, radicalibus subcordatis, caulinis infimis deltoideis acuminatis grosse crenatis longe petiolatis, superio- 

 ribus incisis, summis laciniato-3 - 5-fidis ; bracteis minimis; floribus paniculatis; pedicellis subaggregatis flore 

 (rubro-purpureo) brevioribus; involucelli phyllis linearibus apice spathulatis calycis segmenta ovata suba> 

 quantibus ; carpellis la?vibus rostello brevissimo apiculatis dorso uninerviis demum bivalvibus! — Malva trian- 

 gulata, Leavenworth in Sill. Jour. 7. p. 62 ; Gray, Man. Bot. N. U. S. p. 70. M. Houghtonii, Torr. 8f Gray, 

 FL 1. p. 225. Nuttallia triangulata, Hook. Jour. Bot. 1. p. 197. N. cordifolia, Nutt. in Jour. Acad. Philad. 

 7. p. 98. N. cordata, Lindl. Bot. Reg. t. 1938. — Dry prairies, from Wisconsin and Iowa to Georgia. — 

 This species in its inflorescence and in the minuteness of the hollow beak, which is incurved as the fruit 

 ripens so as to escape notice, makes the nearest approach to Malva ; but the structure is really the same with 

 that which is displayed on a larger scale in the following section. A carpel is figured in Genera Amer. Bor.- 

 Orientalis lllustrata, 2. t. 218. 

 r 2. C. involfjcrata : caulibus e radice napiformi longe procumbentibus pilis patentibus hirsutis ; foliis 

 pedato-5-partitis circumscriptione rotundatis, segmentis cuneatis insico-3 - 5-fidis, lobis dentibusque fol. infimo- 



