816 IPOMCEA 



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

 rea, fl.pl.; Brazilian Morning-Glory is I. setosa ; Hardy 

 or Perennial Moonflower is I. pandurata ; Ipomoea 

 Heavenly Blue is /. rubro-ccerulea. 



A. Plant annual: roots not tuberous . 



B. jFVs. numerous, in Zon<7 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. Lvis. pinnately divided in- 

 to many thread-like seg- 

 ments 2. Quamoelit 



CC. I/vs. entire or lobed, not 



divided. 

 D. Stem hairy. 



E. Lvs. broad-ovate, cor- 

 date, entire 3. purpurea 



EE. Lvs. angulate or 



deeply 3-lobed 4. hederacea 



5. Mexicana 

 DD. Stem not hairy. 



E. Lvs. linear or lanceo- 

 late, sub-sessile ... 6. angustifolia 

 EE. Lvs. ovate-cordate to 



hastate,- petioled. 

 F. Fls. usually less 

 than 1 in. across; 

 scar let or orange. 1. coccinea 

 FF. Fls. usually over 

 Sin. across; red, 



blue or purple .. 8. rubro-caerulea 

 AA. Plant perennial, with large fleshy 



rootstocks. 

 B. Lvs. palmately divided into , 



3-7 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. 



T5. 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. ternata 

 BB. Lvs. entire, angulate or lobed, 



not divided. 

 c. Stem, Ivs. and peduncles 



densely hairy. 

 D. Corolla salverform, the 

 lobes pointed : leaf 

 lobes acttminate, sin- 

 uately toothed 14. setosa 



IPOMCEA 



DD. Corolla funnel form, the 

 lobes obtuse: leaf lobes 

 unequal, blunt, entire. 15. Bonariensis 

 CC. Plant not hairy. 



D. Stem erect or ascending, 

 not trailing or climb- 

 ing. 



E. Lvs. cordate to siib- 

 sagittate, long-peti- 

 oled, acuminate, 

 pubescent beneath.. 16. fistulosa 

 EE. Lvs. linear, very 

 short - p etio I ed, 

 acute, not pubes- 

 cent beneath 17. leptophylla, 



DD. Stem trail ing, climbing, 



or twining. 

 E. Lvs. pale beneath. 

 F. Fls. white, with 



purple throat ... 18. pandurata 

 FF. Fls. lilac to dark 



purple 19. Leari 



EE. Lvs. not pale beneath. 

 F. Fls. opening at 



night 20. Jalapa 



21. Bona-nox 



22. grandiflora 

 pp. Fls. opening in the 



morning. 



G. Corolla yellow. 23. chryseides 

 GG. Corolla purple. 

 H. Lvs. notched 



at the end. 24. Pes-capr 

 HH. Lvs. acute or 



acuminate.25. Batatas 



20. Purga 

 AAA. Plant perennial by a woody stem. 27. Wolcottiana 



1. versicolor, Meissn. (Mina lobdta, Llav. et Lex.). A 

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

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

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

 fading to pale yellow. July-Sept. Mex. Gn. 30, p. 436, 

 437; 39:792. R.H. 1887, p. 19. G.C. II. 26:684, 685. P.M. 

 16:100. V. 10:34, 35. B.R. 28:24. -Distinguished from 

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

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

 servedly popular. 



2. Quamoelit, Linn. (Quamoelit vulgaris, Choisy). 

 CYPRESS-VINE. INDIAN PINK. Fig. 1166. Stem smooth, 

 slender, twining to a height of 10-20 ft. : Ivs. short-peti- 

 oled or sessile: peduncles few-fld., commonly much 

 longer than the petioles : corolla !-!> in. long, scarlet, 

 the tube narrowly funnelform, inflated above ; the limb 

 nearly flat, 5-lobed. July-Oct. Naturalized from tropical 

 America, Va. to Fla., west to Kan. and Tex.; sparingly 

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

 29:33. Beautiful in flower and foliage. Var. 

 Hort., has white fls. 



3. purpurea, Roth. (Convdlvulus mdjus, Hort. Co 

 vdlvulus purpureus, Linn.). TALL MORNING-GLOI 

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

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

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

 purple, pink and diversely variegated. July-Sept. 

 America. Escaped from gardens to waste places, 



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

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

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

 Some of its varieties resemble the entire-leaved forms of 

 I. hederacea, but may be distinguished by their longer and 

 more slender peduncles, umbellate pedicels, and oblong- 

 acute sepals without the long tip usually found on /. 

 hederacea. Seeds ripen freely on cultivated varieties 

 and may be gathered for future sowings. Among " 

 host of garden forms are: alba, white; atro-caei 

 dark blue ; atrosanguinea, dark purple ; azurea, 

 blue; carminata, light crimson; Dickensoni (Phdrlit 

 hispida, var. Dickensoni), azure-blue; Huberi (/. ." 

 beri, var. variegdta, Hort.). Lvs. marked with silv< 

 white, fls. variously colored and margined with whit 

 kermesina (I. kermesina), scarlet; rdsea, blush 



