818 



IPOMa^A 



IPOMOEA 



9. sinu^ta, Ort. ( /. dfSS(^cfa, Pursh, not Willd. /. 

 siiu'tCita, Hort. ). Stem somewhat woody at base, c()vered 

 with long yellowish hairs: Ivs. smooth or nearly so, 

 palmately 7-parted, the divisions lanceolate or narrowly 

 oblong, more or less sinuately cut and toothed: pedun- 

 cles 1-2-tid., longer than the petioles: fls. 1-2 in. wide, 

 hell-shaped, white with purple center; calyx as long as 

 the corolla tube. June-Sept. Trop. Amer., and near 

 the coast from Ga. to Tex.— In Tex. It expands only 2-3 

 hours at midday, and is there called the '"Noon-flower." 

 It may be treated as a coolhouse evergreen, and is worth 

 growing for its delicate foliage alone. In the North the 

 tubers must he wintered in a cellar. 



10. Lindheimeri, Gray {I. heterophylla, Torr., not 

 Orteg). Plant finely pubescent, hoary when young: Its. 

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

 terior ones ovate to ovate-lanceolate, with a much con- 

 tracted base: peduncle 1-2-fld. : corolla longfunnelform, 

 about 3>2 in. long, light blue. Rocky soils, W. Tex. to 

 N.Mex. — Var. Lindleyana, Hort. (/. Lindleyilna,'Kort.), 

 has smaller Ivs., lighter colored fis., and is a more pro- 

 fuse bloomer. An improvement on the type, but more 

 tender. 



11. digitkta., hinn. (I. pa niculata, R.Br. I. pahtiafa, 

 Hort., not Forsk.). Seem trailing or climbing, 20— J-0 ft.: 

 Ivs. 3-7 in. wide, 5-7-parted, the segments elliptic, 

 sometimes spatulate, entire: fls. numerous, in a 2- 

 branched cyme; corolla l>2-3 in. wide, broadly bell- 

 shaped, 5-Iobed, pinkish purple or pink : seeds wath a 

 dense tuft of dirty white wool springing from the apex. 

 July-Sept. Tropics of both hemispheres. R. H. 

 1853:381. B.R. 1:02 and 4:333 (as I. Platensis). P.M. 

 3085 (as /. Platensls). Gng. 2: 311. -One of the best 

 tuberous -rooted Ipomo?as for the garden or warm- 

 house. In the North it may be used with tine effect 

 if grown in a tub and trained to an adjacent pillar or 

 trellis, the vine being cut off before frost and the tub 

 stored. Further south the tubers may be planted di- 

 rectly in the open, and will give a profusion of bloom 

 nearly all summer. 



Var. insignis, Hort. (/. ins'ujui.'^, Kr-r.). Lvs. not pal- 

 mainly divid(.'d, nearl}'" entire or lubed, tin- un<ler sur- 

 face sometimes purplish. P.M. 1790. B.R. 1 :75. -There 

 are few plants of var. inslgnis in cultivation. 



12. Horsfdlliae, Hook. Fls. many, in a 2-branched 

 cyme; corolla bell-shaped, the limb of 5 broad, rounded 

 ]"bos, very sliowy. Cosmopolitan tropics. P.M. 3315. 

 P.M. 3:50. F.S. 10:1047. K.W. 1 :29. -Perhaps the most 

 popular Ipomo?a for winter-tlowering iu a w;irniliousp. 

 If wfll trrjited it will climb 20-30 ft., and will beai- Iinn- 



dreds of fls. each day in early winter. /. Eorsfalliir 

 may also be grown out-of-doors, but it will not come 

 into bloom till late fall unless the roots are cramped. 

 Var. diba, Hort., is 1. ivrnaia ; Lady Slade has pale 

 rose fls.; var. Brigg-sii (/. Briggsii, Hort.), or Lady 

 Brings, is generally considered better than the type for 

 most purposes. It is a freer grower and bloomer, the 

 fls. are a rich magenta-crimson, and it roots from cut- 

 tings much more readily than l. Horsfallice. This va- 

 riety makes a fine plant in a 10-in. pot. G.M. 37:49. 

 Var. Th6mpsoiii, or I. Tliomsoniana, Hort., is/, ternafa. 



13. tern§.ta, Jacq. {I. RorsfuUhp, var. dWa, Hort. /. 

 HorsfdUUe, var. Thomson iaua, Hort. I. 2'homsonid)ia, 

 Mast.). Stem somewhat woody at base: Ivs. usually 3- 

 parted, the segments elliptic or elliptic-oblong, fleshy, 

 smooth: fls. trumpet-shaped, about 2 in. across. Other- 

 wise like I. Morsfallice, of which it is often considered 

 a variety. Probably from W. Indies. G.C. 11.20-817 

 F. 1884:118. Gn. 35, p. 440. -Not considered quite as 

 effective for greenhouse culture as /. Horsfallice. 



14. setbsa, Ker. Brazilian Morning-Glory. Plant 

 very vigorous, branching, covered with stiff purplish 

 hairs: Ivs. 3-10 in. wide, cordate, angular or 3-lobed, the 

 middle lobe abruptly contracted below into a narrow 

 neck: peduncles many-fld., longer than the petioles: 

 fls. 2-4 iu. wide, salverform, rose-purple. Aug. -Oct. 

 Braz. B.R. 4:335. — An excellent free-growing climber 

 for covering arbors, and especially valuable for making 

 a dense screen because of its very leafy habit. In the 

 latitude of New York seeds sown in the open will give 

 flowering plants in late August. It may also be treated 

 as a warmhouse deciduous twiner. Var. Northern Light 

 is said to be a cross with /. Hona-'nox. Plant unusually 

 vigorous, often growing 40-50 ft.: fls. lavender-pink. 



15. Bonari6nsis, Hook. {/. A'ci/'dZ/rt, Lindl. I.Prrrin- 

 giAna, Dammer. /. SiUowii, Penny). Stem branching, 

 tinged with purple and covered with short stellate hairs : 

 Ivs. deeply cordate, 3-5-lobed, the middle lobe longest: 

 peduncles several-fld., longer than the petioles: fls. }%- 

 2 in. wide, violet to lilac, the limb spreading into 5 cre- 

 nate lobes. Augu.st-October. Trop. America and Africa. 

 P.M. 3505. B.R. 27:13. P.M. 9:25. Gt. 47:1440. -Her.- 

 belongs /. Si'llowii, Penny, and probably Hort., not 

 J. Selloi, Mart., which is a distinct species. 



10. fistulbsa, Mart. (J. Texiina, Coulter). Stem 4-10 

 ft. high, subshrubby, branching, smooth or minutely 

 pubescent: Ivs. 4-0 in. long, thickish, entire or nearly 

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

 oles, few-many-fld. : corolla about 3 in. long, bell-shaped, 

 pink-pui'ple. July-Sept. Brazil; now escaped from gar- 

 dens in Mex. and southern United States. — It is known 

 to the trade chiefly as var. Good611i (/. Goodwill, Hort.). 

 This var. 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 South it is hardy if the stem is 

 cut down ami the roots mulched : in the North, the roots 

 must be brought indoors. Advertised as the "Tree 

 Ipomcea." 



17. leptoph^lla, Torr. Bush Moon-Flower. Stem 

 2-5 ft. high, with juany slender, recurving branches: 

 Ivs. 2-4 in. long, entire: peduncle stout, 1-4-fld., usu- 

 ally shorter than the Ivs.: corolla about 3 in. across, 

 funnelforni, rose-pink, deepening to purple in the 

 throat. Aug. -Oct. Dry plains, Neb. and Wyo., south 

 to Tex. and N. Mex. — This species is adapted for very 

 dry places because of its enormous tuberous root- 

 stocks, which often weigh 100 lbs. and extend into the 

 sul)soil for 4 ft. It sonietimes thrives where no rain 

 has fallen for one to three years. The plant is beautiful 

 when in flower. 



18. pandur^ta. ]\Ian-(>f-the-Earth. Wild Potato- 

 vine. Stem 2-12 ft. long: ro()t very long and large (10- 

 20 lbs. ) ; Ivs. 2-4 in. long, long-petioled, usually cordate 

 and entire, occasionally angnlate. flddle-shape or has- 

 tately 3-lobed : peduncles 1-5-fld., commonly a little 

 longer than the petioles : corolla 2-4 in. wide, broadly 

 funnelform with pointed lobes, white with a dark pur- 

 ple throat. May-Sept. Dry soils, Can. to Fla., west to 

 Mich, and Tex. A. G. 12:037. R.H. 1893:574. B.M. 1003 



(as Cout'ofriihi 



ufiidlc,ni,s), 1939, and Gn. 



