POLYPETALOUS EXOGENOUS PLANTS. 1S3 



S. FASCICULATA. Stcms about a span high, branching 

 from the base. Leaves f ' long and a line wide, mostly with 

 a few serratures toward the apex, nearly glabrous above, 

 stellately hirsute beneath ; i)etiole about \ the length of 

 the lamina. Calyx hemispherical ; segments ovate-acute. 

 Carpels short and broad, strongly roughened with project- 

 ing points. Floiuers sessile terminal. — Dmmmond. 



S. RHOMBIFOLIA, L. Dow^iy ; stems erect, much 

 branched ; leaves rhombic-oblong, obtuse at each end, 

 serrate, short-petioled, pale beneath; stipules setaceous, 

 longer than the petioles, caducous ; peduncles solitary? 

 more than half as long as the leaves ; carpels 10-12, even, 

 pointed with a single subulate spine, indehiscent. An- 

 nual. Stems 2°-3° high. Leaves 2-3' long. Floiuers 

 yellow. July to October. 



S. FiLiCAULis. Stems very slender, hispid ; leaves ovate- 

 oblong, cordate at the base, serrate ; petiole as long as the 

 lamina ; floiuers axillary ; solitary carpels 5, 2-beaked. 

 Stem 2° long, clothed with spreading hairs. Leaves 5"-7" 

 long, IJ" 2^" wide, rather obtuse. Peduncles nearly an 

 inch long, very slender. Cali/x hemispherical. — Drum- 

 mond. 



ABUTILON, Tourn. Indian Mallow. 



Involiicel none. Stigma capitate. Ovaries 5 or more, 

 1-celled, 2-9-ovuled. Carpels 1-6-seeded, partly 2-valved, 

 tardily separating from each other or from the central axis^ 

 Eadicle ascending. Leaves cordate. Flowers yellow, 

 white, or purplish. 



A. Texensis. Ijcaves cordate-ovate, acute, softly pu- 

 bescent, serrate, 1' \or\g', petiole half as long as the lamina; 

 peduncles somewhat racemose at the upper branches, 

 1-flow^ered ; carpels 8, pubescent, acute, cohering except at 

 the summit. Ghpsule ovate. Eocky hills of the Cibola, 



