Mallow Family 249 



2.5-5 cm. broad; flowers in axillary sessile or short pedunculate 

 clusters, interrupted spicate; bractlets about equaling the calyx- 

 lobes; calyx densely lanate tomentose, its lobes triangular, acute, 

 4-5 mm. long, mucronate with a more naked tip; petals rose 

 color, about 1 cm. long. 



In the San Gabriel and San Bernardino Mountains. 



3. M. Davidsonii Robinson. Tall shrub or arborescent, 2-4 

 in. high, densely stellate-tomentose throughout ; bractlets stout; 

 leaves deeply cordate, with narrow sinus, 5-angled or shallowly 

 5-lobed, varying to 3-lobed, irregularly crenate-dentate, 5-7.5 cm. 

 broad; inHorescence a dense racemose panicle; bractlets much 

 shorter than the calyx-lobes; calyx canescent-tomentose without 

 more naked mucronate tips, faintly 1-nerved orenervose; petals 

 rose-purple, 1.5-2 cm. long; carpels stellate-tomentose above. 



San Fernando Valley and La Canada in washes. 



■«--«- Upper surface of the leaves green, sparsely stellate-pubescent . 



4. M. fasciculatum (Nutt.) Gray. Tall shrub or somewhat 

 arborescent, 2-4 m. high, with wand-like branches, covered with 

 a dense short stellate-tomentum ; leaves angular, 5-lobed and 

 rather coarsely toothed, densely stellate-pubescent beneath, 

 sparsely so above, 3-5 cm. broad ; inflorescence racemose, or 

 amply racemose-paniculate; bractlets much shorter than the 

 calyx-lobes, these triangular, as broad as long, acute; petals rose- 

 purple, 2-2.5 cm. long. (31. Thurberi Gray; 31. splendidum Kell.) 



Common in the lower altitudes of the chaparral belt. 



5. SIDA L. 



Herbs with serrate, crenate or lobed leaves and soli- 

 tary or clustered axillary or terminal perfect flowers. 

 Bractlets of the involucre none. Calyx 5-toothed or 

 5-cleft. Staminal tube anther-bearing at the summit. 

 Carpels 5-many, 1-ovuled ; style-branches of the same 

 number, stigmatic at the summit only. Carpels indehis- 

 cent or at length 2-valved at the apex. Seed pendulous. 



1. S. hederacea (Dough) T. & G. Perennial, stoutish, erect- 

 spreading or prostrate, leafy, 2-4 dm. long, hoary-tomentose or 



