Petunia. SOLANACEiE. 243 



shorter than the tube, not over a line and a half long, and not surpassing the capsule : 

 corolla dull white or greenish, glabrous, slender-salverform ; the tube an inch to inch and 

 a half long ; the obscurely 5-lobed or angulate limb 4 to 6 lines in diameter. — Watson, Bot. 

 King, 270, t. 27, fig. 1, 2 ; Gray, Bot. Calif, i. 545. — Dry ground, California and Nevada to 

 Colorado. (Guadalupe Island off Lower California, Palmer, referred to A". Biyelwii.) 



++ ++ Filaments more or less unequally inserted in the upper part of the tube of the tubular-fun- 

 nelform or salverform but open-mouthed white corolla, which is vespertine and open by day 

 only in dull weather : capsule thin-walled : herbage viscid-pubescent, often minutely so. 



= Ovary and ovate 4-valved capsule 2-celled as in all the foregoing : diameter of the limb of the 

 corolla less than the length of the slender tube. 



N. Bigelovii, VvTatson. A foot or two high : leaves oblong-lanceolate, sessile or nearly 

 so ; the lower (5 to 7 inches long) with tapering base ; the upper (3 to 1£ inches long) more 

 acuminate, with either acute or some with broader and partly clasping base : inflorescence 

 loosely racemiform, with all the upper flowers bractless : calyx-teeth unequal, linear-subu- 

 late, about equalling the tube, surpassing the capsule : tube of the corolla 1£ to 2 inches 

 long, narrow, with a gradually expanded throat ; the 5-angulate-lobed limb 12 to 18 lines 

 in diameter. — Bot. King, 276, t. 27, fig. 3,4 ; Gray, Bot. Calif. 1. u. 546. N. plumbaginifolia? 

 var. Bigelovii, Torr. Pacif. R. Rep. iv. 127. — California, from Shasta Co. to San Diego, and 

 eastward to Nevada and the border of Arizona. 



Var. WalldLcei, a form with corolla smaller (the tube 12 to 16 lines long), and 

 calyx-teeth shorter, but variable, sometimes hardly surpassing the capsule : upper leaves 

 more disposed to have a broad and roundish or subcordate slightly clasping base : herbage, 

 &c, more viscid. — Near Los Angeles and San Diego, Wallace, Cleveland. 



= = Ovarv and capsule globular, 4-several-celled, at first somewhat succulent: the valves at 

 maturity thin and rather membranous: corolla with ampler limb and proportionally shorter more 

 funnelform tube. — Polydiclia, Don. Polt/diclis, Jliers. 



N. quadrivalvis, Pursh.. A foot high, rather stout, more or less viscid-pubescent, low- 

 branching : leaves oblong or the uppermost lanceolate, and the lower ovate-lanceolat^, 

 acute at both ends, mostly sessile (3 to 5 inches long) ; the lowest larger and petioled': 

 flowers few : calyx-teeth much shorter than the tube, about equalling the 4-celled (or 

 sometimes 3-celled*) capsule : tube of the corolla barely an inch long, the 5-lobed limb an 

 inch and a half or more in diameter ; its lobes ovate and obtusish, veiny. — Sims, Bot. Mag. 

 t.'1778; Lehm. Nicot. 45, t. 4; Nutt. Gen. i. 132 ; Gray, Bot. Calif. I.e. Poli/diclis quadri- 

 valvis, Miers, 111. i. 164, & ii. 55, 60, fig. 2-14. — Oregon, and cultivated by the Indians from 

 Oregon to the Missouri : their most prized tobacco-plant. Perhaps a derivative of the 

 preceding species. 



Var. multivalvis, Gray, 1- c. An abnormal form of cultivation (by aborigines), 

 generally stouter, with calyx, corolla (often over 2 inches wide), and stamens 5-8-merous, 

 and capsule several-celled, sometimes an inch in diameter. — N. multivalvis, Lindl. Bot. Reg. 

 1. 1057. Poh/didis multivalvis, Miers, 1. u. t. 60, fig. 1 & 9. — Oregon, probably known only 

 as an escape from aboriginal cultivation. / 



N. nana, Lindl. Bot. Reg. t. 833, Nierembergia nana, Miers, must be Hesperochiron Californicus. 



15. PETtTNIA, Juss. (Petun is an aboriginal name of Tobacco.) — Viscid 

 South American herbs, with entire leaves, the upper disposed to become opposite, 

 and scattered flowers becoming lateral : two large-flowered species and_ their 

 hybrids familiar in gardens ; an inconspicuous small-flowered one is a naturalized 

 weed, and perhaps indigenous along the southern borders of the U. S. It forms a 

 peculiar section, and has received several generic names. 



P. parviflora, JUSS. A small prostrate or diffusely spreading annual, much branched, 

 more or less pubescent : leaves oblong-linear or spatulate, rather fleshy, seldom half an 

 inch long, nearly sessile : peduncles very short : calyx-lobes resembling the smaller leaves : 

 corolla purple with a pale or yellowish tube, 4 lines long, funnelform ; its short retuse lobes 

 slightly unequal: capsule small, ovoid. — Juss. in Ann. Mus. ii. 216, t. 47 ; Miers, 111. i. 

 t. 23 ■ Dunal. 1. ft. 575. Nicotiana parviflora, Lehm. Nicot. 48. Lindemia Montevidensis, 

 Spreng. CaWbrachoa procumbens, Llav. & Lex. Nov. Mex. Veg. ii. 3. Salpiglossis prostrata , 

 Hook. & Arn. Bot. Beech. 123. Leptophragma prostrata, Benth. mss. ex Dunal, 1. c. 578.— 



