Abutilon. MALVACE^. 329 



358; Coulter, Contrib. U. S. Nat. Herb. i. 32, ii. 41 ; Heller, Contrib. Herb. Frankl. & 

 Marshall Coll. i. 64. — S. Texas, Letterman, Nealley, Heller. (Northern Mex., where first 

 coll. by Bedandier.) 



•1— •)— -I— Fruit pubesceut or canesceut, short, but surpassing the comparatively small 

 calyx : flowers all or mainly in an ample naked and nearly glabrous compound panicle : 

 stems herbaceous, rather tall : leaves large, 4 to 9 inches wide or long, round-cordate 

 with narrow or closed sinus, acuminate, and not rarely with lateral acuminate lohes or 

 lobelets. 



A. Sonorae, Gray. Stem below and long petioles hirsute or hispid with long spreading 

 hairs : leaves soft velvety-tomentose and canescent beneath, less so or green and glabrate 

 above : calyx only 2 lines long, with ovate, obtuse lobes, canescent half the length of the 

 corolla: truncate capsule 4 lines high, of 7 to 10 mucronate or mucrouulate carpels.— 

 PI. Wright, ii. 23. — Hillsides on the Sonoita, just south of Arizona, Wright. (Chihuahua, 

 Mex., Pr ingle, Palmer.) 



A. reventum, Watson. Habit and leaves of the preceding : stem glabrous throughout or 

 barely puberulent : calyx and corolla larger; lobes of the former more tlian half the length 

 of the mucronulate or nearly pointless carpels. — Proc. Am. Acad. xxi. 418. A. Sonorce, 

 var., Gray, PI. Thurb. 308. — S. Arizona and adjacent Sonora, Thurher, Pringle. (Chihuahua, 

 Mex., Palmer.) 



* * * Carpels 5 or rarely 6 to 8, closely erect in the truncate capsule, 3 or 4 lines long, 

 only mucronate-tipped, minutely pubescent or canescent ; seeds 2 or 3, superposed : freely 

 branching herbaceous perennials, small-flowered. 



-I- Corolla yellow, the petals 3 to 5 lines long : plants erect and bushy, a foot to a yard 

 high, canescent throughout with minute and compact coating, the hairs quite indistin- 

 guishable. 



A. malacum, Watson. Pubescence somewhat pannose : stems rather stout : leaves round- 

 cordate, acute or short-acuminate, veiny, 2 to 4 inches long, rather long-petioled : flowers 

 numerous, paniculate-clustered and short-pedicelled, or some earliest solitary and rather 

 slender-peduncled in axils : calyx 3 lines long, the acute or acuminate lobes appressed to 

 and nearly equalling the broad and short stellular-puberulent capsule. — Proc. Am. Acad, 

 xxi. 446. (Has been variously confounded with the next.) — Texas near the Eio Grande, 

 from Laredo to El Paso, Bigelow, Havard, Jones. (Chihuahua, Mex., Pringle.) 



A. incanum, Sweet. Pubescence minuter and whiter : leaves mostly ovate-cordate, ser- 

 rate, larger 3 or 4 inches, smaller on the branchlets half inch long : flowers solitary and 

 mostly slender-peduncled in tlie axils, and sometimes loosely and slightly paniculate on the 

 branchlets : calyx a line or two long, at length usually reflexed under the more or less 

 oblong truncate canescent-puberulent capsule ; seeds when young smooth and glabrous, in 

 age minutely cinereous-pubescent. — Hort. Brit ed. 1,53; Don, Syst. i. 501; Gray, Bot. 

 U. S. Expl. Exped. 168, & Proc. Am. Acad. xxii. 301. A. Texense,' & A. NuttaUii, Torr. & 

 Gray, Fl. i. 231. A. Texense, Gray, PI. Lindh. pt. 2, 161, & PI. Wright, i. 21. Sida incana, 

 Link, Enum. ii. 204. — S. Arkansas and Texas to Arizona. (Mex., Sandwich Islands.) 

 •I— -(— Corolla brick-red or "pink," the petals 2 or 3 lines long : plants diffuse. 



A. parvulura, Gray. Stellular-puberulent, cinereous or greener, or when young canes- 

 cent : stems slender, loosely spreading or decumbent from a ligneous root : leaves from 

 rounded- to ovate-cordate, irregularly serrate, sometimes obscurely 3-lobed, thinnish, half 

 inch to 2 inches long : flowers mostly solitary and axillary on filiform peduncles : calyx a 

 line or two long, at length reflexed under the short-ovoid capsule. — PI. Wright, i. 21, ii. 23, 

 & Proc. Am. Acad. xxii. 301. — W. Texas to S. Colorado and Arizona quite to the Rio 

 Colorado ; first coll. by Wright. 



* * * * Carpels 5, short, submembranaceous, at length 2-valved, abruptly and divergently 

 10-awned (the 5 awns soon dividing) ; seeds 2 or 3, superposed : herbaceous, probably 

 perennial, with green and membranaceous leaves, and small yellow flowers. 



A. Thurberi, Gray. Green, not canescent, pubescence of 3-4-rayed and some simple 

 bri.stl^- hairs: stems a foot or two high, slender, simple or ])aniculately branched above. 



