IPOMCEA 



IPOMCEA 



1659 



shorter than the Ivs.; corolla about 3 in. across, funnel- 

 form, rose-pink, deepening to purple in the throat. 

 Aug.-Oct. Dry plains, Neb. and Wyo., south to Texas 

 and N. Mex. Plant World 7:5, 6. This and the pre- 

 ceding species are adapted for very dry places because 

 of the enormous tuberous rootstocks, which often 

 weigh 100 pounds and extend into the subsoil for 4 ft. 

 They sometimes thrive where no rain has fallen for 

 1-3 years. The plant is beautiful when in flower. 



3. stans, Cav. A beautiful erect, branching shrub 

 with a thickened woody root: sts. and foliage finely 

 pubescent: Ivs. nearly sessile, oblong, hastate and 

 deeply toothed at the base: fls. solitary on axillary 

 peduncles, pink or purple, 2-23/2 in. long. Mex. The 

 best of the several species of Mexican bush moon- 

 flowers, none of which is hardy. 



4. fistulSsa, Mart. (/. texana, Coulter). St. 4-10 

 ft. high, subshrubby, branching, smooth or minutely 

 pubescent: Ivs. 4-6 in. long, thickish, entire or nearly 

 so: peduncles 1-2 in. long, mostly shorter than the peti- 

 oles, few- to many-fld.; corolla about 3 in. long, bell- 

 shaped, pink-purple. July-Sept. Brazil; now escaped 

 from gardens in Mex. and S. U. S. It is known to the 

 trade chiefly as var. Goddellii (/. Goddellii, Hort.). 

 This variety has lavender-pink fls., with a darker throat, 

 and is apparently more floriferous and desirable than 

 the type. It produces seed sparingly, but is easily 

 rooted from cuttings. In the S. it is hardy if the st. is 

 cut down and the roots mulched: in the N., the roots 

 must be brought indoors. Advertised as the "tree 

 ipomcea." 



5. arborescens, Don. An erect, woody, tree-like 

 plant, reaching 15-20 ft. height: twigs and foliage 

 finely velvety-pubescent: Ivs. ovate - cordate : sepals 

 oval, obtuse, J^in. long, pubescent within and without; 

 fls. white, 2 in. long: seeds black with a long coma of 

 white hairs on the dorsal angles. Mex. G.F. 7: 

 364. Requires a dry cool air like most of the cacti 

 and makes an interesting companion plant to them in 

 a cactus-house. 



6. Wolcottiana, Rose. Tree, 25-30 ft. high, often 1 ft. 

 through, with slender, slightly drooping branches: Ivs. 

 ovate to ovate-lanceolate, 3-5 in. long, smooth: fls. 

 numerous, in short racemes or corymbs; corolla about 

 2^2 in. broad, white, broadly bell-shaped. Mex. G.F. 

 7 : 365. Seeds do not germinate readily. 



7. Pes-caprae, Roth (7. maritima, R. Br.). St. 

 creeping, seldom twining, 20-^50 ft.: roots often 12 ft. 

 long and 2 in. thick: Ivs. 1-^4 in. long, fleshy, roundish, 

 often broader than long, with 2 glands at the base and 

 prominently pinnate-veined: peduncles usually few-fld., 

 equaling the petioles; corolla nearly 2 in. long, bell- 

 shaped, margin scarcely lobed. Aug.-Oct. Trop. coasts 

 of both hemispheres; drifting sands of coast, Ga. to 

 Texas. B.R. 319. 



8. stolonifera, Poir. (/. carnbsa, R. Br. 7. acetosse- 

 folia, R. & S. 7. littoralis, Boiss. not Blume). Sts. gla- 

 brous, creeping and often rooting at the nodes: Ivs. 

 variously lobed or oblong-lanceolate, not cordate: fls. 

 cream-colored, 1J^ in. long. Circumtropical on sandy 

 shores, S. C. to Fla. Cyrill, PI. Rar. fasc. 1. pi. 5. 



9. Lindheimeri, Gray (7. heterophyUa, Torr., not 

 Ort.). Plant finely pubescent, hoary when young: Ivs. 

 deeply 5-cleft or 5-parted, all of the lobes or the 3 

 interior ones ovate to ovate-lanceolate, with a much 

 contracted base: peduncle 1-2-fld.; corolla long-funnel- 

 form, about 3J/2 in. long, light blue. Rocky soils, W. 

 Texas to N. Mex. Var. Lindleyana, Hort. (7. Lind- 

 leydna, Hort.), has smaller Ivs., lighter colored fls., and 

 is a more profuse bloomer. An improvement on the 

 type, but more tender. 



10. purpdrea, Roth (Convolvulus majus, Hort. Con- 

 vdlvulus purpiireus, Linn.). TALL MORNING-GLORY. 



Fig. 1961. St. 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. 

 Amer. Escaped from gardens to waste places, Canada 

 to Fla., west to Neb. and Texas, widely distributed in 

 most tropical 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 7. 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 7. hederacea. Seeds ripen freely on 

 cult, varieties 

 and may be 

 gathered for 

 future sowings. 

 Among the host 

 of garden forms 

 are: alba, white; 

 atro-caerftlea, 

 dark blue; atro- 

 sanguinea, dark 

 purple; azftrea, 

 sky-blue; carmi- 

 nata, light crim- 

 son; Dickensonii 

 (Phdrbitis Ms- 

 pida var. Dick- 

 ensonii), azure- 

 blue; Hftberi (7. 

 Hubert var. var- 

 iegata, Hort.). 

 Lys. marked 

 with silvery 

 white, fls. vari- 

 ously colored 

 and margined 

 with white; ker- 

 mesina (7. ker-- 

 meslna), scarlet; 

 rosea, blush-rose; varia, a trade name for packages 

 containing a mixture of many kinds; violacea-striata, 

 violetr-purple. There are several double forms of 7. 

 purpurea. Var. fldre-pleno, Fig. 1962, has very large 

 Ivs.: fls. appearing much later than single varieties, 

 semi- or much-doubled, bluish white streaked with 

 light blue or pink. Intro. 1892. Said to be very 

 floriferous and a good pot-plant. G.F. 5:593 (adapted 

 in Fig. 1962). A.G. 14:246. Var. violacea fl.-pl., 

 Hort., is entirely distinct from the preceding. Gt. 47, 

 p. 133. 



11. hirs&tula, Jacq. (Phdrbitis diver sifblia, Lindl. 

 7. mexicana, Gray). Like 7. hederacea, but young Ivs. 

 entire or slightly angulate, becoming deeply 3-lobed and 

 cordate, as in 7. hederacea, the middle lobe broadest: 

 peduncles as long or longer than petioles; corolla 1 in. 

 wide, violet-purple, sometimes with crimson plaits; 

 sepals merely acute, not attenuate and recurved as in 

 7. hederacea. B.R. 1988. B.M. 4289. The plants in 

 the trade as 7. mexicana are mostly 7. hederacea, I. 

 digitata and Calonyction aculeatum. I. mexicana vera, 

 Hort., 7. mexicana grandiflora alba, Hort., and 7. mexi- 

 cana grandiflora hybrida, Hort., are Calonyction aculea- 

 tum or 7. grandiflora. 



12. mutabilis, Lindl. (7. dealbata, Hemsl. 7. Learii, 

 Meissn. not Paxt.). Perennial from a woody root: 

 sts. densely and softly pubescent: Ivs. orbicular-ovate, 

 entire or 3-lobed, appressed silky-pubescent above, 

 silvery canescent beneath: fls. 2-3 in. long, blue or 

 purple with a white tube or throat. Mex. B.R. 39. 

 One of the most showy and ornamental species of the 

 Pharbitis group. 



13. hederacea, Jacq. (7. Nil, Roth. 7. scabra, 

 Forsk. and Hort.). St. twining or climbing, 2-8 ft.: Ivs. 



1962. Ipomoea purpurea var. flore-pleno. 



