Petunia. SOLANACE^E. 243 



shorter than tlie tube, not over a line and a lialf long, and not surpassinsf the capsule : 

 corolla dull white or greenish, glabrous, slcnder-salverf(^rni ; the tube an inch to inch and 

 a luilf long ; the obscurely ft-lobed or angulate limb 4 to 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 N. Difjeluvii.) 



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

 nelform or salverform but opeii-moiUhed white coroUa, which is vespertine and open by day 

 only ill did! weather: capsule tiiiu-walled : herbage viscid-pubescent, often minutely so. 



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

 corolla less than the length of the slender tube. 



N. Bigelovii, W^atson. 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 H inches long) more 

 acununate, with either acute or some witli broader and partly clasi)ing base : inflorescence 

 loosely racemiform, with all the upper flowers bractless: calyx-teeth luiequal, 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. c. 540. N. plumbaginifolia? 

 var. Bi<]('lov!!, Torr. Pacif. R. Rep. iv. 127. — California, from Sliasta Co. to San Diego, and 

 eastward to Nevada and the border of Arizona. 



Var. W^allacei, a form with corolla smaller (tlie tube 12 to 10 lines long), and 

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

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

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



= == Ovary and capsule globular, 4-several-ceIled, at first somewhat succulent: the valves at 

 maturity thin and rather membranons: corolla with ampler limb and propoi'tionallj' shorter more 

 funnelt'orm tube. — Pobjdidia, Don. Poli/diclis, Miers. 



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

 branciiing : leaves oblong or tlie uppermost lanceolate, and the lower ovate-lanceolate, 

 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 obtusisli, veiny. — Sims, Bot. Mag. 

 t. 1778 ; Lehm. Nicot. 45, t. 4 ; Nutt. Gen. i. 132 ; Gray, Bot. Calif. 1. c. Poli/diclis quadri- 

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

 Oregon to the Missomn : 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, witli calyx, corolla (often over 2 inches wide), and stamens 5-8-merons, 

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

 1. 1057. Poli/diclis multivalvis, Miers, 1. c. t. Oi), fig. 1 & 0. — Oregon, probably known only 

 as an escape from aboriginal cidtivation. 

 N. NAXA, Lindl. Bot. Reg. t. 833, Nieremhcrcjia nana, Miers, must be Ilcsperochiron Californiciis. 



15. PETtJNIA, Juss. (Pehm is an aboriginal name of Tobacco.) — Viscid 

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

 and scattered flowers becoming lateral : two largo-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, mtu:h branched, 

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

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

 corolla purple with a pale or yellowisii tube, 4 lines long, f nnnelform ; its short retuse lobes 

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

 t. 23 ; Dunal. 1. c. 576. Nicotiana parviflora, Lehm. Nicot. 48. Lindernia Afontevidensis, 

 Spreng. Callthrachoa procumhens, Llav. & Lex. Nov. Mex. Veg. ii. 3. Salpiglossis prostrnta, 

 Hook. & Am. Bot. Beech. 123. Leptophrarjina prostrnta, Benth. mss. ex Dunal, 1. c. 578. — 



