SIDA. MALVACEAE. 103 



ABUTILON. 



S. acerifolia Nutt. T. & G. Fl. i, 228. Scabrous with stellate pubes- 

 cence : stems stout, much branched, 3-6 feet high : leaves cordate, deeply 

 o-71obed, lobes acute, coarsely serrate: racemes leafy below, naked above, 

 the flowers clustered on short peduncles : lobes of the calyx broadly tri- 

 angular acute or acuminate : petals 9-15 lines long, carpels hirsute on the 

 back. On the Columbia river and its tributaries from the Rocky Mount- 

 ains to the ocean. 



S. leptosepala Torr. Bot. Wilkes 255, of the upper Columbia has slen- 

 der peduncles and caudate-attenuate calyx lobes. I have been unable to 

 see either a specimen or a description of it. 



4 SIDA L. Gen. n. 837. 



Pubescent or tomentose herbs with white or yellow axillary 

 solitary fascicled flowers. Calyx usually without bractlets. 

 Staminal tube simple antheriferous at the summit. Petal soblique. 

 Styles 5 or more with capitate stigmas. Carpels as many, 1- 

 ovuled, indehiscent or 2-valved, at length separating from the 

 axis. 



S. hederacea Torr. in Gray PI. Fendl. 23. Stems decumbent from a 

 perennial root, leafy, a foot long or less : leaves reniform, about an inch 

 broad, very oblique, serrate or crenate, shortly petioled: flowers in short 

 axillary panicles or solitary, the pedicels at length deflexed : calyx with 1 

 or 2 setaceous bractlets at base, the lobes acuminate : petals yellowish, pu- 

 bescent externally, 4-6 lines long, carpels 6-10, triangular, lj^ lines long, 

 smooth. From Washington (near Walla Walla) to Arizona and New 

 Mexico. 



S. SPINOSA L. Sp. 683. Annual : minutely and sottly pubescent, much 

 branched, 10-20 inches high : leaves ovate-lanceolate or oblong, serrate, 

 rather long petioled: peduncles axillary, 1-flowered, shorter than the 

 petiole, 'flowers yellow, small: carpels 5, each splitting at the top into 2 

 beaks. On the ballast ground at Portland, Oregon. 



5 ABUTILON Tourn. 



Herbs, shrubs, or trees, with cordate, rarely somewhat lobed, 

 leaves and solitary axillary flowers. Calyx 5-cleft, without an 

 involucre. Ovary 5-many-celled with 3, rarely more, ovules in 

 each cell. Capsule composed of 5 or more 2-valved, 3-seeded, 

 rarely 4-6-seeded, carpels. Peduncles axillary, solitary or rarely 

 in pairs, 1-many-flowered, sometimes by the abortion of the up- 

 per leaves apparently in terminal racemes. None indigenous 

 but the following one introduced and liable to become common. 



A. AVICENN.E Gsertn. Fr. ii, 251, t. 135. Annual: stem 2-5 feet high 

 with spreading branches: leaves orbicular-cordate, abruptly acuminate, 4- 

 6 inches in diameter, velvety tomentose, crenately toothed ^flowers usually 

 solitary on axillary peduncles, sometimes 3 or more on short flowering 

 branches which bear 1 or 2 small leaves, orange-yellow: carpels about 15, 

 3-seeded, inflated, truncate, birostrate, the long beaks spreading in a ra- 

 diate manner. Waste places and roadsides. Introduced from India. 



ORDER XVI. LINAGES Dumort. Comm. Bot. 61. 



Annual or perennial caulescent herbs or low shrubs. Leaves 

 alternate sometimes opposite or subverticillate below : simple, 

 generally entire, sessile or nearly so, mostly estipulate, In- 

 florescence usually cymose, Flowers hermaphrodite, 4-5-mer- 



