816 IPOMCEA 



names are : Double Morning-Glory is mostly /. purpu- 

 rea, fl.pl.; Brazilian Morning-Glory is /. se(o«a ; Hardy 

 or Perennial Moonflower is I. pandurata ; Ipomoea 

 Heavenly Blue is /. rubro-ccenilea. 



I. Plant annual : roots not tuberous . 



B. Fls. numerous, in long scor- 



pioid racemes ; corolla a 



bag-shaped tube, contracted 



at the mouth 1. versicolor 



BB. Fls. borne singly or few in 

 loose cymes ; corolla ex- 

 panded into a limb. 

 c. 1/vs. pinnately divided in- 

 to many thread-like seg- 

 ments 2. Quamoclit 



cc. Lvs. entire or lobed, not 

 divided. 

 D. Stem hairy. 



E. Lvs. broad-ovate, cor- 

 date, entire 3. purpurea 



EE. Lvs. angulate or 



deeply s-lobed 4. hederacea 



5. Mexicana 

 DD. Stem not hairy. 



E. Lvs. linear or lanceo- 

 late, sub-sessile . . . C. angustifolia 

 EE. Lvs. ovate-cordate to 

 hastate; petioled. 

 P. Fls. usually less 

 than I in. across; 

 scarlet or orange. 7. coecinea 

 pp. Fls. usually over 

 Sin. across; red, 



blue or purple .. 8. rubro-c senile a 

 I. Plant perennial, with targe fleshy 

 rootstocks. 

 B. Lvs. palmately divided into 

 S-7 segments, 

 c. Stem and petioles hairy .. 9. sinuata 



10. Lindheimeri 

 cc. Stem and petioles not 

 hairy. 

 D. Peduncles longer than 



the petioles 11. digitata 



DD. Peduncles equaling the 

 petioles. 

 *:. Fls. red: leaf seg- 

 ments sessile, taper- 

 ing to both ends, 



margin wavy 12. Horsfalliae 



EE. Fls. white: leaf seg- 

 ments stalked, not 

 tapering to the ends, 

 margin not wavy.. 13. temata 

 BB. Lvs. entire, angulate or lobed, 

 not divided, 

 c. Stem, lvs. and peduncles 

 densely hairy. 

 D. Corolla salverform, the 

 lobes pointed: leaf 

 lobes acuminate, sin- 

 uately toothed 14. setosa 



IPOMCEA 



DD. Corolla funnelform 



lobes obtuse: leaf lobe. 

 unequal, blunt, ent 

 CC. Plant not hairy. 



D. Stemerect or ascending, 

 not trailing or climb- 



re.lo. Bonarlensis 



mg. 

 E. Lvs. cordate to sub- 

 sagittate, long-peti- 

 oled, acuminate, 

 pubescent beneath . .16. 

 EE. Lvs, linear, very 

 short-petioled, 

 acute, not pubes- 

 cent beneath 17. 



DD. Stem trailing, climbing, 



E. Lvs. pale beneath. 

 F. Fls. white, with 

 purple throat... IS. 

 pp. Fls. lilac to dark 



purple 19. 



EE. Lvs.notpalebeneath. 

 P. Fls. opening at 

 night 20. 



pandurata 

 Leari 



. opening i 

 ing. 



I the 



Plan 



a. Corolla yellow. 23. chryseides 

 GG. Corolla purple. 

 H. Lvs. notched 



at the end.2i. Fes-capras 

 HH. Lvs. acute or 



actiminate. 25. Batatas 

 2i;. Purga 

 nial by a woody stem. 27. Wolcottiana 



1. versicolor, Meissn. {Mlnalobita,L\&v.etLex.). A 

 vigorous climber, 15-20 ft. high : lvs. with a cordate 

 base, 3-lobed, the middle lobe longest and narrowed be- 

 low: ds. %-% in. wide, opening rich crimson, soon 

 fading to pak- vellow. July-Sept. Mex. Gn. 30, p. 436, 

 437; 39:7;c'. H.H. 1887, p. 19. G.C. II. 26:684, 685. P.M. 

 lt!:l(IO. V. IU:.)4, 35. B.R. 28:24.-Distinguished from 

 all other Ipomtpas by its bag-shaped corolla and scor- 

 pioid inflorescence. It is a very free bloomer, and de- 

 servedly popular. 



2. au4mocllt, Linn. (Qudmojclit vulgdris, Choisy). 



Cypress- 



slender, t 



oled or 



longer tli 



the tube 



nearly fla 



America, Va. to Fh 



Pig. 1166. Stem smooth, 

 -ht of 10-20 ft.: lvs. short-petl- 

 i. s few-fld., commonly much 

 corolla 1-1>^ in. long, scarlet, 

 I form, inflated above; the limb 

 -Uct. Naturalized from tropical 

 Kan. and Tex. ; sparingly 



escaped from cultivation farther north. B.M. 244. Gn. 

 29:33. - Beautiful in flower and foliage. Var. 41ba, 

 Hort., has white fls. 



3. purpilrea. Roth. {Convdlvulus mdjus, Hort. Con- 

 vdlvuliis purpiireus, Linn.). Tall Morning-Glory. 

 Fig. 1167. Stem trailing or twining for 4-10 ft., branch- 

 ing from the base : peduncles slender, 1-5-fld., often 

 longer than the petioles: corolla 1-2 in. long, light blue, 

 purple, pink and diversely variegated. July-Sept. Trop. 

 America. Escaped from gardens to waste places. Can. 

 to Fla., west to Neb. and Tex.; widely distributed in 

 most trop. regions. B.M. 113, 1005, 1682. Gn. 21, p. 295; 

 27, p. 473. — One of the most popular of garden annuals. 

 Someof its varieties resemble the entire-leaved forms of 

 /./iedecrtcert.but may be distinguished by their longer and 

 more slenderpeduncles. umbellate pedicels, and oblong- 

 acute sepals without the long tip usually found on 1. 

 hederacea. Seeds ripen freely on cultivated varieties 

 and may be gathered for future sowings. Among the 

 host of garden forms are: Alba, white; atTO-caerdlea, 

 dark blue ; atrosangulnea, dark purple ; azdrea, sky- 

 blue; carmlnita, light crimson; Dickensoni ( P7i(()?ii(is 

 hlspida,v&T. Dickensoni},a.zure-hlue: Huberi (I.Hii- 

 beri, var. variegAta, Hort.). Lvs. marked with silvery 

 white, fls. variously colored and margined with white; 

 kermeslna (/. kermesina), scarlet; rdsea, blush rose; 



