1644 



IMPATIENS 



INCARVILLEA 



10. Hawkeri, Bull. A bushy, soft-wooded plant, 2 

 ft. or less high, with well-branched sts. of a dull red 

 color; Ivs. opposite or in whorls of 3, ovate, acuminate, 

 serrate, dark green, pale beneath: peduncles axillary, 

 long and slender; fls. rounded in outline, about 3 in. 

 diam., deep carmine, with a white eye; standard 

 round-oboyate, retuse; spur to nearly 3 in. long, slen- 

 der and slightly curved. South Sea Isls. Intro, about 

 1886. B.M. 8247. G.C. II. 25:761. I.H. 34:2. Gn.W. 

 5:213. G.W. 14, p. 126. G.Z. 31, p. 122. A green- 

 house plant, needing an intermediate temperature. 

 Plants from early spring cuttings bloom all summer 

 and into autumn. 



11. platypetala, Lindl. (7. pukherrima, Dalzell). 

 Sts. strong, succulent, branched and usually reddish 

 purple: Ivs. whorled, lanceolate or oval, serrate, 

 hairy beneath: peduncles axillary, shorter than the 

 Ivs.; fls. large, rose-colored; spur sickle-shaped, 

 rather thin and petals transversely obcordate. Sum- 

 mer. Java. R.H. 1847:221. B.R. 32:68. Needs a 

 moderate to warm temperature and may 



be used as a house-plant or in protected 

 and warm situations outdoors. Prop, by 

 cuttings, and during growth should be 

 treated like gloxinias. Var. Lucie or Lucy 

 belongs here. 



12. flaccida, Arn. (/. latifolia, Hook., not Linn.). 

 Fig. 1953. Slender but erect, somewhat branched, gla- 

 brous, 6-18 in.: Ivs. stalked, ovate or lanceolate, cre- 

 nate, 2-5 in. long, the petiole with or without glands: 

 fls. rose-purple, 1^ in. or less in diam., mostly solitary; 

 sepals ovate; standard broad, 2-lobed, spurred; wings 

 broad, 2-lobed, variable; lip boat-shaped, with a long 

 slender curved spur about \}/% in. long and sometimes 

 parted to the middle: caps, glabrous, ^$m. long. India. 

 B.M. 5276, 5625. Thrives under the treatment given 

 /. Sultani. There is a white-fld. form (var. dlba}. 



cc. Peduncles with 8-6 or more fls., often more or less 

 clustered or terminal. 



13. Hookeriana, Arn. (7. biglanduldsa, Moon. 7. 

 Sultani dlba, Hort.). A very succulent much-branched 

 plant, growing to a height of 3 ft.: Ivs. long-petioled, 

 ovate-lanceolate, toothed: peduncles axillary in the 

 upper Ivs.; fls. large, white, spotted with purple on the 

 large lower petals; spur bent horn-shaped, and longer 

 than the fls. Blooms in fall, teylon. B.M. 4704. J.F. 

 14:391. It is a perennial, requires a moderate temper- 

 ature and does not bloom until well developed. Prop, 

 by cuttings. One of the best species in cult. 



14. Roylei, Walp. (7. glanduligera, Royle). Fig. 

 1954. A rather coarse garden annual, with strong st., 

 succulent and much-branched: lower Ivs. opposite; 

 upper Ivs. usually in 3's and whorled, all ovate or ovate- 

 lanceolate, naked, 4 in. long, sharply serrate; basal ser- 

 rations and the petiole glandular: peduncles axillary, 

 with 3 or more fls. and very numerous toward top of 

 plant; fls. large, dark purple; spur very short. Aug., 

 Sept. India, in the Temp. W. Himalaya region, 6,000- 

 8,000 ft. altitude. B.M. 4020. B.R. 26:22. J.F. 

 4:427. Grown from seed, needing but little care, and 

 useful in groups. In its native country it grows 4-10 

 ft. high. Variable. Var. moschata, Hook. (7. moschata, 

 Edgew.), has Ivs. alternate and whorled, coarsely ser- 

 rate and less glandular. Var. Candida, Hook. (7. 

 Candida, Lindl.), has uppermost Ivs. opposite or whorled, 

 and fls. white spotted crimson. J.F. 4:416. Var. mac- 

 rochtla, Hook. (7. macrochlla, Lindl.), has upper Ivs. 

 alternate; terminal lobes of the wings half-oval (as if 

 one side wanting) and falcate. B.R. 26:8. 



15. Balfourii, Hook. f. Glabrous, slenderly branch- 

 ing, 2-3 ft.: Ivs. 3-5 in. long, short-stajked, ovate- 

 lanceolate and very long-acuminate, with many minute 

 recurved teeth, glandless: fls. loosely racemose at the 

 top of the st. on very slender pedicels, large, rose and 



yellow; sepals 2, nearly orbicular, small; standard 

 orbicular, reflexed, white suffused rose; the keel red; 

 wings 1J4 in. long, pale yellow on basal lobe and 

 bright rose on the hatchet-shaped terminal lobe; lip to 

 1M in. long, gradually narrowed into a horn-like some- 

 what incurved obtuse spur: caps, erect, narrow, to 1^ 

 in. long, red on the angles. W. Himalayas. B.M. 

 7878. 



7. aurlcoma, Baill. Perennial, 6-24 in.: Ivs. alternate, lanceolate, 

 acuminate, crenate and with bristles: fls. golden yellow streaked 

 red within; lateral petals connate; spur short, curved, 2-parted: 

 sts. and midrib reddish. Comoro Isls., Mozambique. B.M. 7381. 

 /. chrysdntha, Hook. f. Annual, glabrous: Ivs. alternate, lance- 

 ovate, serrate: fls. several on a peduncle, golden-yellow; spur short 

 and incurved. India. B.M. 7786. /. comortnsis. Baker. Lvs. 

 elliptic-lanceolate, acute and crenate: fls. large, bright carmine with 

 2-parted white spur. Comoro Isls. /. comorlcoma, Hort. (I. comor- 



1954. Impatiens Roylei. 



enais X I. auricoma) . 7. cuspidAta, Wight & Arn. Shrubby, gla- 

 brous, farinaceous: Ivs. alternate or uppermost opposite, lanceo- 

 ^late or oblong-lanceolate, serrulate: fls. solitary, 1 in. across, very 

 "pale red; spur slender. India. Var. arthretica, Hook, f., has the 

 lower nodes much thickened. B.M. 7844. 7. fdlcifer. Hook. f. 

 Annual, more or less decumbent: Ivs. alternate, sessile or stalked, 

 ovate to ovate-lanceolate, serrate: fls. solitary and short-pedicelled, 

 ringent, golden yellow spotted blood-red; spur slender, to 1 Yi in. 

 long. India. B.M. 7923. 7. Hkrzogii, Schum. Stout branch- 

 ing herb the branches 4-angled: Ivs. opposite and whorled, ovate 

 to ovate-lanceolate: fls. sol tary or clustered, about 2 in. across, 

 cinnabar; spur to nearly 3 in. long, very slender, incurved. New 

 Guinea. B.M. 8396. R.H. 1913: 12. 7. Hdlstani, Hort. (I. Hol- 

 stiixl. Sultani). 7. kewensis, Hort. (I. platypetala X I. Herzogii). 

 7. Maridnx, Reichb. Annual: Ivs. cuneate-oblong and acute, 

 serrate, with lighter areas between veins: fls. light purple, cymose; 

 standard with a projection below the tip; lip with slender hooked 

 spur. India. G.W. 14, p. 127. 7. psittacina, Hook. f. Annual, 

 leafy and much branched: Ivs. alternate, ovate, acuminate, ser- 

 rate: fls. solitary, oddly colored, 2 sepals green, standard pale 

 rose, wings suffused and streaked red, lip white with irregular dash 

 of carmine; spur short and hooked. Burma. B.M. 78C9. 7. Thom- 

 sonii. Hook. f. Annual, erect, 8-12 in.: Ivs. alternate, ovate-lan- 

 ceolate, serrate: fls. several on a peduncle, %in. long, pale rose; 

 spur slender, incurved. India. B.M. 7795. 



IMPERATA SACCHARIFL6RA: Miscanthus. 

 IMPERAT6RIA: Peucedanum. 



L. H. B.f 



INCARVILLEA (after Incarville, the French Jesuit 

 missionary to China, correspondent of Jussieu in 1743). 

 Bignoniaceae. Showy herbs, annual, biennial, or per- 

 ennial, planted in the open. 



Closely allied to Amphicome, and the fls. of both 

 have the same general appearance, but in Incarvillea 

 the calyx-lobes are awl-shaped, while in Amphicome 

 the calyx is truncate or shortly dentate; also the seeds 

 of Incarvillea have an entire hyaline wing, while in 

 Amphicome the seeds have a wing that is cut into long 

 thin strips or hairs. The two genera form a small but 

 remarkable group, characterized by their caps, open- 

 ing by the ventral suture only. Calyx campanulate, 

 5-lobed; corolla-tube elongated, enlarging; limb some- 

 what 2-lipped, the lobes 5, spreading and broad; sta- 

 mens 4, included, didynamous; disk annular or ring- 

 like; ovary 2-loculed: fr. a narrow more or less curved 

 caps, with many seeds: plant erect, branching or sim- 

 ple: Ivs. alternate, 2-3-pinnate or simple, with narrow 

 segms. : fls. large, in terminal clusters, red to yellow. 

 Species about a dozen, Turkestan, Thibet, China. The 

 general experience seems to be that these plants need 

 rather more winter protection than most hardy her- 



