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. 

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

 round-obovate, refuse; 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. (/. pulcherrima, Dalzcll). 

 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 glo.xinias. Var. Lucie or Lucy 

 belongs here. 



12. flaccida, Arn. (/. taiifdlia, 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 } 2 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 1^2 in. long and sometimes 

 parted to the middle: caps, glabrous, } oin. long. India. 

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

 I. Sultani. There is a white-fld. form (var. dlba). 



cc. Peduncles with 3-6 or more fls., often more or less 

 clustered or terminal. 



13. Hookeriana, Arn. (/. higlandulosa, Moon. /. 

 Sultdni cilba, 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. Ceylon. 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. (/. 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. moschala, Hook. (/. moschala, 

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

 rate and less glandular. Var. cdndida, Hook. (/. 

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

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

 rochila, Hook. (/. 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-stalked, 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 114 in- long, pale yellow on basal lobe and 

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

 1J4 in. long, gradually narrowed into a horn-Uke some- 

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

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

 7878. 



/. aurtcoma, 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. — /. comor^nsis, Baker. Lvs. 

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

 2-parted white spur. Comoro Isls. — I. comoTicoma, Hort. (I. comor- 



1954. Impatiens Roylei. (XM) 



ensisxl. auricoma). — /. cuspirlata, Wight & Arn. Shrubby, gla- 

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

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

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

 lower nodes much thickened. B.M. 7844. — /. fdlcifcr. Hook. f. 

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

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

 ringent, golden yellow spotted blood-red; spur slender, to 1 '2 in. 

 long. India. B.M. 7923. — /. Herzogii, Schum. .Stout branch- 

 ing herb the branches 4-angled: lvs. 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.— I. Hdlslani. Hort. (I. Hol- 

 stiixl. Sultani). — /. kewensis. Hort. (I. platypetala X I. Herzogii). 

 — /. Maridnse. Rcichb. .\nnual: lvs. .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. — I. ptnttacina. Hook. f. Annual, 

 leafy and much branched: lvs. 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. 7809. — /. Th6m- 

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

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

 spur slender, incurved. India. B.M. 7795. L H B t 



IMPERATA SACCHARIFLORA: Miscanthus. 



IMPERATORIA: Peucedanum. 



INCARVILLEA (after Incarville, the French Jesuit 

 missionary to China, correspondent of Jussieu in 1743). 

 Bignoniacca'. 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 calvx is truncate or shortly dentate; also the seeds 

 of Incarvillea have an entire hyaUne 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: lvs. 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- 



