286 PROCEEDINGS OP THE AMERICAN ACADEMY 



SIDALCEA, Gray. The annual species of this well-marked genus 

 are quite clear, and have recently been noted in Proc. Am. Acad. xxi. 

 400. They are *S'. diploscypha, S. hirsiUa, and the badly named S. 

 calycosa of M. E. Jones {S. sulcata of Mrs. Curran), with the outer 

 phalanges of the androecium broad and rather distant from the inner; 

 and S. Hartivegi with its var. tenella (^S. tenella, Greene), having the 

 narrower outer phalanges closely approximate to the terminal ones. 

 There is also the ambiguous annual species, S. malachroides, which in 

 addition to its peculiar habit is nearly dioecious. But several of the 

 perennial species produce individuals with wholly female flowers. 



The perennial species are hard to discriminate ; but those indicated 

 by Prof. E. L. Greene may probably be maintained, as also one or 

 two more. Hoping for more light upon some of them, I here merely 

 indicate, in a foot-note, ray tentative distribution.! 



t SIDALCEA PEEENNES. 



« Phalanges manifest, at least the exterior series : leafy-stemmed : some lowest 

 cordate-orbicular leaves undivided. 



■^ Corolla uniformly white : anthers bluish. 

 S. CANDIDA, Gray. x 



•*- -I- Corolla rose-color or mauve, rarely a white variety. 



++ Herbage cinereous with soft and short pluriradiate stellular pubescence, no 

 hirsute or hispid hairs : outer phalanges broad, bearing short filaments. 



S. Californica, Gray, PI. Fendl. 19. Sida Callfornica, Nutt. in Torr. & Gray, 

 n. i. 233. Abounds near Santa Barbara, in the Santa Inez Mountains. 



++ ++ Herbage green, at least not cinereous : coarser pubescence when present 



of simple or geminate or some pauciradiate hairs. 



= Mature carpels when dry rugulose-reticulated on the sides, mostly on the 



back also : petals half-inch to inch long. 



S. MALV^FLORA, Gray as to syn. Sida malccejloro, DC. S. hunu'tis, Gray, PI. 

 Fendl. 20. The outline figure of Mo^ino & Sesse is perfectly decisive, and shows 

 the characteristic hirsute hairs, the char, "glabriuscula" of the Prodromus not- 

 withstanding. Sida ddphinifoHa, Nutt., is a form of it. Here also Nuttallia mal- 

 vivflora, Fisch. & Mejer. 



S. ASPRELLA, Greene, Bull. Calif. Acad. i. 78, founded on a lax and decum- 

 bent and unusually equably -leaved state of a usually erect and tall species, has 

 no hirsute nor hispid pubescence, but is roughish with minute and dense almost 

 scurfy stellular pubescence, or below glabrous ; the petals are usually an inch 

 long ; the carpels rugose-reticulated throughout and glabrous at maturity, be- 

 coming concave or grooved on the back and acute-angled. I collected it at 

 Chico, in the lower caiions. 



S. CAMPESTRis, Greene, I. c, is either glabrous up to the inflorescence, or with 

 some hirsute hairiness below and cinereous stellular pubescence above; petals 

 over half-inch but rarely full inch long, with emarginate summit usually more 

 laciniate-erose than is common; calyx minutely canescent and with or without 



