110 MALVACEAE 



glabrate, dark green, 4-15 cm. long; petioles 5-20 cm. long, stellate-hirsute; stipules lance- 

 deltoid, 5-8 mm. long; bractlets ovate, 3-6 mm. wide, 4-10 mm. long, abruptly acute; calyx 

 short-hirsute, 5-6 mm. wide and broad at anthesis, the lobes ovate, acute, accrescent; petals 

 narrowly obovate, 10-12 mm. long, emarginate, white tinged with rose or lavender; fruit dis- 

 coid; carpels 8-12, 3-3.5 mm. high, smooth dorsally, radiately reticulate laterally. 



Introduced from Europe and established as a weed in the San Francisco Bay region. Type locality: Crete. 

 May-Sept. 



11. SIDA L. Sp. PL 683. 1753. 



Perennial herbs or shrubs. Herbage stellate-scurfy. Leaves alternate. Involucellate 

 bractlets 1-3, distinct, linear. Flowers perfect, solitary or clustered in the axils of the 

 leaves; pedicels articulate. Petals (in ours) stellate-puberulent on the exposed outer part. 

 Stamineal column simple, antheriferous at the summit. Styles filiform; stigmas capitate. 

 Carpels 5-12, 1-celled, 1-seeded, indehiscent or incompletely 2-valved. Seeds pendulous, 

 3-angled. Embryo curved, endosperm scanty. [The Greek name of some plant.] 



A genus of ISO species or more in the warmer parts of both hemispheres, represented in our region by one 

 species. Type species, Sida spinosa L. 



1. Sida hederacea (Dougl.) Torr. Alkali Mallow. Fig. 3225. 



Malva hederacea Dougl. ex Hook. Fl. Bor. Amer. 1 : 107. 1830. 

 Sida ohliqua Torr. & Gray, Fl. N. Amer. 1 : 233. 1838. 

 Sida hederacea Torr. ex A. Gray, Mem. Amer. Acad. II. 4: 23. 1849. 

 Disella hederacea Greene. Leaflets Bot. Obs. 1: 209. 1906. 



Stems 1-5 dm. long; herbage densely stellate-scurfy-canescent throughout. Leaves 1-5 

 cm. broad, ovate-subcordate to obliquely subreniform, crenate, prominently veined beneath; 

 petioles thick, 1-2 cm. long; stipules linear-subulate, 3-4 mm. long, marcescent; calyx cam- 

 panulate to turbinate, the lobes ovate to ovate-lanceolate, 2-3 mm. broad, 6-10 mm. long, 

 short-acuminate; bractlets linear, 3-5 mm. long; petals 1-2 cm. long, narrowly obovate, pale 

 cream, dotted or suffused with lavender or rose, stellate-puberulent along one side; stamineal 

 column short, glabrous; fruit conical-truncate, 5-8 mm. wide, about 4-5 mm. high; carpels 

 6-10. dark brown, triangular, sparsely stellate-puberulent on the backs. 



In alkaline or heavy soil, Lower and Upper Sonoran Zones; Washington south to northern Lower California, 

 east to Utah, Texas, and adjacent Mexico. Type locality: "interior districts of the Columbia. June-Uct. 



12. ANODA Cav. Diss. 1: 38. pi 10. 1785. 



Herbaceous annuals with hastate, deltoid or cordate, alternate leaves, glabrous to 

 sparsely pubescent throughout. Flowers solitary (in ours), or in terminal racemes. Calyx 

 accrescent. Petals obovate. yellow, violet, or purple. Stamineal column short. Fruit dis- 

 coid, hirsute to glabrate. Carpels 5-20, cristate, muticous or smooth, pubescent or glabrate 

 dorsally, 1-seeded. Seeds pendulous to horizontal, ovate-reniform, turgidly rounded on 

 the angles. [Ceylonese name for some Abutilon, applied to the American genus by Cava- 

 nilles.] 



A genus of IS or 20 species, chiefly in Mexico, extending into Arizona, New Mexico, and Texas; adventive in 

 the middle San Joaquin Valley, California. Type species, Sida cristata L. 



1. Anoda cristata var. digitata (A. Gray) Hochr. Crested Anoda. Fig. 3226. 



Anoda arizonica A. Gray, Proc. Amer. Acad. 22: 298. 1887. 



Anoda arizonica var. digitata A. Gray, Proc. Amer. Acad. 22: 298. 1887. 



Anoda triangularis var. digitata Robinson in A. Gray, Syn. Fl. N. Amer. 1^: 319. 1897. 



Anoda critata var. digitata Hochr. Ann. Conserv. & Jard. Bot. Geneve 20: 47. 1916. 



Annual erect herb 1-1.5 m. high, paniculately branched above, sparsely pubescent with 

 stiff, spreading hairs. Leaves variable, ovate-triangular to hastate, sometimes 3-5-lobed, acute 

 at the apex, serrate or crenate, 5-7 cm. broad, 6-8 cm. long; petioles slender, about equaling 

 the blades; flowers solitary or in few-flowered axillary clusters, the pedicels hispid, 3-6 cm. 

 long • calyx 4-5 mm. long in flower, densely canescent, the lobes narrowly triangular-lanceolate, 

 10-15 mm. long and spreading in fruit; petals broadly obovate, 6-9 mm. long pale purple 

 or bluish; stamineal column short, minutely pubescent at the base; fruit discoid, 10-15 mm. 

 broad; carpels 10-20, cristate dorsally, hispid-pubescent, appendage 2-4 mm. long, the dissepi- 

 ments rupturing at maturity; seeds turgidly reniform-ovate, minutely papillose, dark brown. 



Growing occasionally as an adventive weed in gardens and cultivated fields. Upper and Lower Sonoran Zones; 

 central San Joaquin Valley and adjacent foothills of the Sierra Nevada from Amador County to Mariposa 

 County. California. Native in Arizona, New Mexico, Texas, and adjacent Mexico. Type locality: southern 

 Arizona. June-Sept. 



13. HIBISCUS L. Sp. PL 693. 1753. 

 Herbs, shrubs, or small trees. Flowers showy, axillary (in ours) solitary. Leaves alter- 

 nate, entire or variously lobed, estipulate. Involucel of several to many linear bractlets. 

 Calyx 5-cleft. Stamineal column bearing anthers along upper half, but naked at the 



