3390 



TROP^OLUM 



TSUGA 



brous: Ivs. peltate near the margin, cordate-orbicular, 

 divided to about the middle into 5 lobes, which are 

 mostly apiculate: fls. canary-yellow, odd and very irreg- 

 ular; spur green, hooked; 2 upper petals erect and large, 

 obovate-clawed, much fringed; 3 lower petals small and 

 narrow and ciliate. Supposed to be native of Peru and 

 Ecuador. B.M. 1351. B.R. 718. G.W. 10, p. 497. An 

 excellent quick-growing vine, although the fls. can 

 scarcely be called showy. 



AA. Species tuber-bearing. 

 B. Tuber large, obconical or pear-shaped. 



7. tuberdsum, Ruiz & Pav. Root producing a pyri- 

 form irregular tuber 2-3 in. long: st. climbing, glabrous: 

 Ivs. peltate near the base, cordate-orbicular, 6-lobed 

 nearly or quite to the middle: fls. rather small, the calyx 

 and long spur red, the petals 



yellow, small and nearly erect 

 and little exceeding the calyx. 

 Peru and Bolivia. B.M. 3714. 

 F.S. 5:452. P.M. 5:49. R.H. 

 1853:341 (tubers). J.H. III. 30: 

 385. H.U. 1, p. 4. Plant stands 

 some frost. In Peru, the tubers 

 are eaten, and the plant is some- 

 times cult, in Eu. for the tubers. 

 It appears in the American cata- 

 logues of European dealers. The tubers are 

 usually boiled, or said to be eaten in a par- 

 tially dried condition. 



BB. Tuber longer, moniliform in many mem- 

 bers: Ivs. in 5 parts, usually divided to the 

 base: petals scarlet. 



8. pentaphyllum, Lam. Slender climber, the 

 glabrous colored sts. arising from a tuberous 

 root: Ivs. divided to the base into 5 oblong or 

 pbovate segms. or Ifts.: fls. small (about 1^ 

 in. long), the large red spur being the con- 

 spicuous part, the lobes green, and the 2 small 

 petals red. Argentina. B.M. 3190. B.H. 22:73. 

 A half-hardy species, showy because of the great 

 number of bright small fls. 



BBB. Tuber small, sphseroid or somewhat flattened, 



rarely elongated: Ivs. smaller or small, divided to 



the base. 

 C. Throat of the spur ventricose-turbinate, aperture 



narrow; spur cone-like, its tip cylindrical-subulate; 



petals lemon-yellow. 



9. tricolor, Sweet, emended by Lindl. (Sweet spelled 

 the specific name tricolorum, but, as Lindley pointed out, 

 this is orthographically incorrect) (T. coccineum, 

 Miers). Fig. 3857. Perennial from a fleshy or tuberous 

 root, half-hardy, climbing: Ivs. peltate, orbicular, 

 divided into 6 oblong villous Ifts.: fls. about 1 in. long, 

 somewhat cornucopia-shaped, the calyx being the con- 

 spicuous part; main part of the calyx vermilion, the 

 short lobes purplish, the small petals yellow. Chile. 

 B.M. 3169. B.R. 1935. F.S. 4:369. P.M. 2:123. Gt. 

 62, p. 273. G.W. 6, p. 277. Very choice half-hardy 

 plant and probably the best known in this country of 

 the tuberous-rooted kinds. Usually grown indoors. Its 

 growth is very delicate. Var. grandiflorum, Hort. (T. 

 Jardttii, Paxt. T. Yardttii, Buchen.), differs only in 

 having larger fls. P.M. 5:29. 



CC. Throat of spur open; spur short or very short, conical; 

 throat of corolla narrow, almost closed when old; petals 

 blue. 



10. az&reum, Miers (T. violseflbrum, Dietr.). Very 

 slender glasshouse climber: Ivs. peltate, 5-parted, nearly 

 or quite to the base, into narrow-obovate or oblanceo- 

 late divisions: fls. small, the calyx and short spur 

 green, the wide-spreading corolla azure-blue, the petals 

 2-lobed or emarginate. Chile. B.R. 28:65. R.H. 



1843:300. F.S. 2:110. P.M. 9: 247. R.B.20:157. Var. 

 grandifldrum, Hort., has larger fls. F.S. 11:1160. I.H. 

 3:85. 



ccc. Throat of spur conical, aperture broad; throat of 

 corolla broad, open; petals yellow. 



11. brachyceras, Hook. & Arn. A very slender 

 climber, resembling T. tricolor in habit: Ivs. peltate, 

 nearly orbicular, deeply parted into 6 or 7 oblong or 

 obovate obtuse lobes: fls. small, on short pedicels, the 

 calyx green and very short-spurred, the corolla with 

 spreading yellow petals. Chile. B.M. 3851. B.R. 1926. 

 F.S. 4:368. P.M. 4:55. Half-hardy perennial. 



T. digitatum, Karst. Climber, with root fibrous: Ivs. peltate> 

 5-7-lobed: fls. yellow, 1 in. diam., the spur long and red, the petals 

 fimbriate. Venezuela. T. leptophyllum, Don (T. edule, Paxt.). 

 Climber: Ivs. orbicular, with 5 or 6 narrow Ifts.: fls. in shape jike 

 those of T. majus but smaller, yellow. Produces tuberous edible 

 roots. Chile. P.M. 9:127. T. Lindenii, Wallis. Beautiful climber 

 with large, peltate, undulate-lobed Ivs. that are purplish beneath 

 and beautifully veined with white above: fls. on long pedicels, the 

 long tube red and the calyx-lobes green. Colombia. I.H. 41 : 17. 



L. H. B. 



F. TRACY HUBBARD.! 



TROXIMON (Greek, edible, which does not apply). 

 Compdsitx. Mostly perennial nearly stemless herbs, 

 belonging to the Cichoriacese, 

 with clusters of sessile radical 

 Ivs. and simple scapes bearing 

 a head of yellow or purple fls. 

 in summer, on a naked or 

 bracted stalk: involucre cam- 

 panulate, the bracts in several 

 rows : rays blunt and 5-toothed 

 at the apex. Species 30, in 

 N. Amer., except possibly 2 

 i species which are S. American. 

 " The plants are little known to 

 horticulturists . The name 

 Troximon is now given up for 

 Agoseris (Greek, goat chicory). 

 Agoseris cuspidate, Dietr. 

 (Trdximon cuspidatum, Pursh. 

 Nothocalais cuspidata, Greene). 

 3857. Tropaeolum Root thick: Ivs. entire, linear- 

 tricolor, (xfc) lanceolate, thickish, 4^0 in. 

 long, the margins conspicuously 

 white-woolly and crisped : scape 

 about 1 ft. high: fls. yellow, 

 about 1-1 Yi in. wide: achene 

 not beaked. Prairies of 111. and 

 Wis. to N. D. Cult, easy in 

 any good border. Not unattractive. It 

 has rather large dandelion-like heads of 

 fls. in late summer. May be offered by 

 collectors. N. TAYLOR.! 



TRUMPET-CREEPER: Campsis, especially C. radicans. T.- 

 Flower: Bignonia capreolata. T.-Honeysuckle : Lonicera semper- 

 mrens and Campsis radicans. T.-Vine : Campsis radicans. 



TSUGA (its Japanese name). Pinacex. HEMLOCK 

 SPRUCE. HEMLOCK. Ornamental trees, grown chiefly 

 for their graceful habit and handsome evergreen foliage. 



Resinous trees with slender horizontal branches: Ivs. 

 usually 2-ranked, short-petioled, linear, flat or angular, 

 falling away in drying: staminate aments axillary, sub- 

 globose; ovule-bearing aments terminal, the scales 

 about as long as the bracts, each with 2 ovules at the 

 base: cones small, ovate, or oblong with thin flexible 

 persistent scales, much longer than the bracts; seeds 

 winged. Nine or 10 species in N. Amer., E. Asia, and 

 the Himalayas. The genus is closely allied to Abies and 

 Picea and differs little in the structure of the fls.; the 

 cones are very similar to those of the larch, but the Ivs., 

 which are much like those of Abies in their outward 

 appearance, though smaller, are very different in their 

 internal structure from all allied genera, having a soli- 



