248 Malvaceae 



the upper more dissected ; flowers in simple few-many-flowered 

 spiciform racemes; petals rose-purple, 2-2.5 cm. long; mature 

 carpels rugose-reticulate. (>S. humilis Gray; S. delphinifolia 

 Nutt.) 



Frequent on the grassy hills and mesas. March-May. 



2. S. parviflora Greene. Stems glabrous at least below, sub- 

 simple, terminating in long slender loose racemes; lowest leaves 

 orbicular, crenate-toothed, the others deeply divided, the divisions 

 lobed ; pedicels 4-6 nun. long, subtended by simple linear bracts 

 of scarcely the same length; petals 8-12 mm. long, rounded at 

 apex; carpels reticulated. 



In low subsaline places throughout our range. Much resembling the last, 

 but easily recognized by the glabrous stems and leaves, and by the usually 

 smaller flowers. 



4. MALVASTRUM Gray. 



Low annual herbs or shrubs, often densely stellate- 

 pubescent. Braetlets 1-3 or rarely wanting. Calyx- 

 lobes 5. Petals 5, often showy. Staminal tube simple, 

 antheriferous at the summit. Styles filiform : stigmas 

 capitate. Carpels 5 or more, 1-ovuled, rarely 2-valved. 

 ^rcd ascending. 



* Annuals. 



1. M. exile Gray. Stems decumbent, branching from the 

 base, 2-4 dm. long, pubescent; leaves 12-18 mm. broad, broadly 

 ovate, cordate or truncate at base, deeply 5-lobed, sparingly 

 toothed, on slender petioles of about the same length ; (lowers 

 mostly solitary and axillary on slender pedicels, 2-3 cm. long; 

 braetlets 3, linear, persistent; calyx-lobes lanceolate, acuminate; 

 petals obovate, purple, 4-6 mm. long; carpels 12-15, orbicular, 

 glabrous, transversely rugose-reticulated. 



Chats worth Park. 



** Perennials. 



■♦ ()ipi'r xii r face nf the leaves densely stellate-tomentose and hoary. 



2. M. Fremontii Torr. Shrubby below, 1-2.5 m. high, densely 

 soft-tomento8e with long-rayed stellular pubescence; leaves 

 roundish, Bhallowly <>r scarcely at till cordate crenate-toothed, 



