﻿18 PLANTS FENDLERIAN.E. 



f 77. C. involucrata, var. ; with the leaves less dissected. Lew and moist'places, 

 Rabbit's Ear and McNees Creeks. 



forms a thickened perennial root. The corolla is cherry-red (turning purplish in drying), handsome, H to 2 

 inches in diameter. Petioles often hirsute. Head of fruit smaller than in the last. — Well characterized by 

 the smooth carpels, with a very large and thick beak. 



6. C. macrorhiza : caulibus strigulosis humilibus e radice napiformi ; foliis radicalibus oblongo-cordatis, 

 primariis crenatis integris, sequentibus hastato-lobatis varie incisis, caulinis pedato-3 - 5-partitis segmento in- 

 termedio majore 3-7-fido vel laciniato ; pedunculis corymbosis foliis sa?pe brevioribus ; floribus parvulis 

 albidis ; calycis strigosi laciniis ovato-lanceolatis ; carpellis rugosissimis. — Sida macrorhiza, James! Mss. in 

 Herb. Torr. Malva pedata /3 ? umbellata, Torr. Sf Gray! Fl. 1. p. 227 ; Hook.! Lond. Jour. Bot. 6. p. 

 76. — Plains of the Platte, Dr. James, Fremont, Geycr. — An entirely distinct species. The numerous 

 stems, about a foot long, spring from a large edible root, which attains the diameter of from three to five 

 inches. The peduncles are seldom two inches in length. The petals are white or nearly so, only half an 

 inch long. 



7. C. alcjeoides : strigosa ; caulibus erectis gracilibus ; foliis " inferioribus triangulato-cordatis incisis " 

 (Michx.), mediis hastato-5- 7-partitis laciniatis, summis 3-5-sectis, segmentis linearibus ; pedunculis corym- 

 bosis folia superantibus ; (loribus majusculis roseis vel albis ; calycis hispidi laciniis triangulatis acutis; car- 

 pellis 10 hirsutulis dorso rugosissimis inferne dehiscentibus. — Sida alcceoides, Michx. ! Fl. 2. p. 44 ; Torr. 

 Sf Gray ! Fl. 1. p. 234, ($• Suppl. p. GS1. — Gravelly soil, Kentucky and Tennessee, Michaiu; Dr. Currey 

 (v. sp. in herb. Torr.). A foot high. Petals narrowly cuneiform, nearly an inch long. — Dr. Torrey (1. c.) 

 noticed the conspicuous transverse dorsal process in the upper part of the cell of the carpel. It is, however, 

 equally striking in the two preceding species, with which this is entirely congeneric. In these, also, the seed 

 does not entirely fill the cell (below the process), and falling back somewhat the umbilical sinus is at length 

 often directed obliquely upward more or less ; but the structure and insertion are not as in Sida. 



3. SIDALCEA, Nov. Gen. 



Calyx involucello nullo nudus. Petala integra vel obcordata. Tubus stamineus apice duplex, nempe in 

 phalanges 5 exteriores pluriantheriferas petalis oppositas, atque circiter 10 interiores vel filamenta subindefinita 

 per paria coalita, solutus ! Styli 5-9, introrsum stigmatosi. Ovulum in loculis solitarium, peritropo-adscen- 

 dens. Capsula 5-9-cocca; carpellis membranaceis, reniformibus, muticis vel apiculatis, solubilibus, intus 

 laceratione apertis. Semen adscendens, embryo arcuatus, et radicula infera ut in Malva. — Herbse Am.-Bor. 

 Occidentales ; foliis rotundatis plerisque palmatifidis, radicalibus integriusculis ; caule virgato ; floribus roseo- 

 purpureis albisve, racemosis. I' 



Sida- sp., Lindl., Null., Torr. <$• Gray, Fl. I. c. no. 14- 17. 



A genus well marked in habit and character; distinguished from Sida (to which the species have been 

 referred on account of the naked calyx) by the ascending ovule and descending radicle as well as the uni- 

 lateral stigmas, which occupy the whole inner face of the styles, as in Malva, &c. ; from Malvastrum by the 

 stigmas and the whole habit ; from Callirrhoe by the beakless carpels ; from Malva by the want of an invo- 

 lucre and the fewer carpels ; and from all by the elimination of the stamens from the tube in the form of an 

 outer and an inner series, and the combination of the filaments, at least of the outer series, into distinct and 

 definite phalanges. This peculiarity is evident in all the species upon inspection, but is carried to the maxi- 



