frost when mature. Nicotianas are well adapted for 

 culture in pots or tubs, and are then fine plants for 

 summer porch decoration. p^ y^^ Barclay 



A. FU. yellow or yeUowish white: Ivs. distinctly 



petioled. 



B. Plant glabrous and glaucous, becoming woody {y. 



rustica is not to be sought here). 



glailca, Grab. Becoming 20 ft. high and tree-like in 



its native plsme (Argentina), glabrous, glaucous-blue all 



over and sometimes developing purplish tints: Ivs. 



large, ovate, sometimes subcordate, more or less repand, 



the petiole conspicuous: fls. in a loose panicle, tubular 



and constricted below the very short limb, curved, 



pubesrciil .III til.- iini.i.l.' i; M 'N.;: \,.i uii<'.,iiimon 



habit; :.!-" vuu • i,. '- •■,.- ,,i,., - ^ ,, ' I'Mially 



BB. Plant pilose, herbaceous or half shrubby. 

 wigandioides, Koch & Pint. Tall-growing, reaching 

 6 and 7 ft. Iii.jli, witli :\ vtr;iiL'ht cputral shaft and bear- 

 ing vn-v I ■■ ;. ,1,1 Im 111 i.iii.i-,.: Ivs. ovate and pointed 



or sintii ' II, undulate-margined but 



not tniiili I ill ' .1 Ai^h, short, in drooping 



panicle-. (. I III!. Ill \ \.r. -I ri king plant, sometimes 

 used for b..M subtropical effects. 



AA. Fls. white, long-tubular: Ivs. mostly not petinhil 

 (iik; more or less clasping: annual and pereniiinl 

 herbs. In some of the following species the fl.s. 

 are green or purplish on the outside. 

 B. Corolla-lobes acute. 

 aUta, Link & Otto (^V. afflnis, Hort., under which 

 name it is universally known in gardens). Figs. U87, 

 1488. Slender but strong-growing, 2-3K ft. tall, viscid- 

 pubescent: Ivs. lance-obovate or ovate-elliptic, becoming 



small and narrow above, clasping and sometimes de- 

 current, entire or remotely repand-dentate : lis. remote 

 in a wand-like raceme, spreading, the very slender tube 

 5-6 in. long, the limb oblique and 2 in. or more across, 

 the narrow - pointed lobes unequal. Braz. G.C. II. 



NICOTIANA 



16:141. On. 34, p. 520; 42, p. 126; 50, p. 212; 56, p. 384 

 Ung. 5:182. B.R. 19:1592 (as JV. Persica).-A de- 

 servedly popular plant, blooming freely all the season.- 

 until killed by frost. It is well to plant it in a place 

 which is protected from strong winds. It is apparently 

 perennial, but is treated as a tender or half-hardy an- 

 nual. It self -sows, and often iii:iiiit:iitis it-tlf finm'year 

 to year in the Middle States an. I S,,i]tli. In ih, wM-mer 



tion. P'all-sown seedlings luak. . .\.. Hint |...t-t.laiii ^ f()r 

 the window. The fls. open at niybt fall, but clu.-i- in the 

 daytime. At night they are very fragrant. During the 

 last ten years the plant has become very popular. 



Var. decurrens (N. decurrens, Hort.) is lower, branch- 

 ing near the base, very floriferous. 



Bylvfestrls, Spegaz. Fig. 1489. Lvs. larger and better 

 than in N. alata, rugose and veiny, more prominently 

 undulate, the stem well furnished near the ground: fls". 

 larL'i". hanc-iiiL' in whorls or fascicles in a heavy large 



1:m '..I . III. _'i. ::;.-.:. -U,,,. ,,f til,. II, .Vflti.s . if l.s'.l'.l and 

 19(10. 



longifldra, Cav. Erect, 2-3 ft., slender, the prominent 

 foliage radical: lvs. oval-lanceolate to lanceolate, promi- 

 nently undulate, pointed : fls. 4 in. long, the tube green 

 or purplish, but the limb (lobes about % in. long) white 

 at least inside, borne in simple racemes. Argentina.— 

 Little kniwn in cult., being inferior to N. alula. The 

 flowers open late in the day. Perennial, but annual in 

 gardens and in northern countries. 



BB. Corolla-lobes obtuse or rounded. 



suavfeolens, Lehm. (iV. undulMa, Vent. ..V. longiflbra, 

 var. nndiildta, Voss). Variable: 1-2 ft., annual or bi- 

 ennial, usually viscid: lower lvs. long-stalked and ovate 

 or spatulate, the upper ones narrow and sessile and 

 sometimes clasping, all undulate-margined as a rule: 

 fls. in loose terminal racemes, on slender pedicels, sal- 

 ver-shaped, the narrow cylindrical tube about 2 in. long, 

 the circular limb 1 in. or less across, pure white (or 

 greenish outside). Australia, B.M.673. Gn. 21, p. 291.- 

 The broad lobes usually overlap, so that the limb often 

 appears as if entire. Sweet-scented at night. Plant 

 pubescent or glabrous. Not rare in gardens. It is said 

 that it will endure moderate shade. 



noctifldra, Hook. (iV. longifldra, var. noctifldra, Voss). 

 Very like the last, and perhaps a geographical form of 

 it: lvs. lanceolate-undulate: fls. often purplish outside 

 but white within, the spreading lobes notched or emar- 

 ginate: plant very viscid. Argentina. B.M.2785. — A 

 night bloomer, like the last. There is a var. albifldra, 

 with pure white fls. 



AAA. Fl.1. distinctly colored {visually with shades of 

 red}, the tube relatix^ely broad or even inflated: 

 annual and perennial herbs. 

 B. Lvs. stalked. 



rustica, Linn., was cult, for Tobacco by the Indians 

 and is run wild in many places, but its nativity is un- 

 known ( probably indigenous to the Old World, accord- 

 ing to Gray) : annual, usually not over 3 ft. tall, viscid- 

 pubescent: lvs. large, ovate and obtuse: fls. yellowish 

 or greenish, 1 in. or less long, the base narrow, tube 

 thereafter inflated, orifice contracted, the lobes short 

 and rounded. The fls. are open by day. Inflorescence 

 paniculate. 



BB. Lvs. sessile and decurrent. 



Tabacmn, Linn. Tobacco. Tall, strong-growing strik- 

 ing plant, 3-5 ft., annual, usually glutinous: lvs. mostly 

 ovate or ovate-lanceolate, acuminate-pointed: fls. 2 in. 

 long, rose or purplish, in a large nearly naked panicle, 

 the tube swollen upwards and the spreading lobes 

 pointed. S. Araer. — Cult, from earliest times by the 

 Indians, and occasionally run wild. Its commercial 

 cultivation for Tobacco is an agricultural subject, and 

 therefore is not discussed in this work. It is a striking 

 plant in the garden. There are several forms cult, foi 

 ornament, those with large red fls. being most known. 

 N. grand iflorum , y.purpureum. etc., are names given tc 

 these forms. The fls. are diurnal. See Fig. 1077. p. 757. 



