1800 



THUNBERGIA 



Var. Ifflvis, Clarke, is glabrous. B.M. 1881. L.B.C, 

 20:191.'!. Var. vestlta, Clarke, is more hairy and the 

 flowers are not fragrant. 



4. er6cta, T Anders (Meyenia erMa, Benth.) 

 Shrub, 2-4 ft high -nith loose spreidmg branches, half 



erect Ivs opposite, peti 1 

 smooth, entire or sinu it i 

 lary peduncles, cilyv mi 

 cealed by the large bri t 

 curved, deep yellow -nithii 



ubrhomboid, 

 1 tl litary on axil- 

 1 11 lit teeth, con- 

 1 11 liuiiulform tube 

 hiub juij.le, l^o-2 in. 

 iLioss of 5 subrotund 

 obcordate lobes Trop. 



W Africa B 



F S 11 1093 B H 1863: 

 2ol I H 3 99 F 1855: 

 22o J H III 28 35.- 

 A greenhouse shrub, 

 producing flowers freely 



Grows m the open in 

 Florida Not a climber. 

 ^ar dlha, Hort Fls. 



coccinea. 



THUNIA 



twining: Ivs. long-petiolate, ovate-oblong to oblong- 

 lanceolate, acuminate, rounded at the base, smooth, en- 

 tire or slightly toothed: fls. 3 in. across, pale blue, 

 white or yellow in the throat, borne in a.xillary whorls 

 or in a raceme in which they are also clustered or 

 whorled; corolla with a wide, -^'Mirpit- trmnpet-shaped 

 tube and a large 5-1c>1"m1 liini' |.,,i,, \: \\ p.is,-,; 4993. 

 F.S. 12:1275. Gn. 12. |.. r_'n ; . ., , , : : -..i:;, r.h. 

 1860, p. 342. J.H. lIl.L^s: r (. ■. IVrennial 



Propagated by cuttings. 



8. Mysorfinsis, T. Anders. (Hexaeintris Mysorensis, 

 Wight). Climbing shrub, with long, slender branches: 

 Ivs. opposite, petiolate, oblong-lanceolate, acuminate, 

 entire or somewhat distantly toothed: racemes long, 

 pendulous: fls. yellow, 2 in. across, the tube enclosed 

 by the spathe-like bracts; limb 4-lobed, the upper lip 

 concave, with refiexed side lobes, lower Up of 3 sub- 

 equal, spreading lobes. India. B.M. 4786. F.S. 8:752. 

 S.M. 2, p. 130.— A tall greenhouse climber which flowers, 

 according to treatment, at all seasons. 



2501 Thunbereia erandifloraCX 



white. Var. caerillea, Hort. Fls. large, intense violet, 

 with orange throat. 



5. chr^sopB, Hook. Stem climbing, slightly hairy: 

 Ivs. opposite, petiolate, ovate-cordate, angularly toothed : 

 peduncles axillary, solitary, 1-fld. : corolla funnelform 

 or campanulate ; tube yellow, limb purple, bluish around 

 the throat. Sierra Leone. B.M. 4119. F.S. 1:5. P.M. 

 11:221. F. 1844:193. -Naturally a climber, but said to 

 become somewhat erect if grown in a coolhouse. 



6. grandifldra, Roxb. Fig. 2501. Stem tall, climbing: 

 Ivs. broadly ovate, angularly cordate and toothed or 

 lobed, somewhat roughened on both sides, petiolate: 

 fls. solitary or in short, stout racemes in the leaf -axils, 

 bright blue, becoming whitish in the throat; corolla- 

 tube bell-shaped; limb 3 in. across, of 5 large, spread- 

 ing rounded lobes. Bengal. B.M. 2.366. P.M. 7:221. 

 L.B.C. 4:324. B. 2:76. B.R. 6:495. Gn. 47:1003. I.H. 

 42:32. G.C. III. 9:789. — A very large perennial green- 

 house climber; flowers during the summer or autumn. 

 There is also a white-flowered variety. 



7. laurifdUa, Lindl. {T. Edrrisii, Hook. T. grandi- 

 flora. Wall.). Stem terete, smooth except the youngest. 



iVall. {Hexaeintris eoccinea, Nees). A 

 very tall climber: stem much branched, 

 4 angled : Ivs. short-petiolate, variously 

 shaped, the lower broadly ovate, with 

 a hastate or cordate angled base, the up- 

 per ovate, cordate, all angularly toothed 

 or the upper entire: fls in terminal or 

 axillary racemes, 1-3 ft. long; bracts 

 large, inflated, as long as the tube; limb 

 scarlet, of 5 reflexed emarginate lobes; 

 throat orange. Autumn and winter. In- 

 dia. B.M. 5124. L B.C. 12:1195. F.S. 

 23:2447. R.H. 1890, p. 197. 



Heisrich Hasselbking. 



THllNIA (Count Thun-Tetschen, who 



li id all important collection of orchids 



d.i.ut the middle of the 19th century). 



I t>rrli/'h'!rnr. A small genus of which at 



J present only 5 species are known. These 



m ^ "S are tall plants with annual leafy stems 



S^,|J^ terminating in a raceme of showy flow- 



^\ / ers. The genus was formerly united 



V with Phaius, from which it differs by 



the terminal inflorescence. Sepals and 



petals similar,spreading; labellum convolute over 



the column, spurred, ornamented with several 



oests consisting of lines of fleshy hairs: pollinia 



8 fls subtended by large membranous bracts. 



The species of Thunia occur in northern India, 

 Burma ind in the S. Himalaya region ascending 

 to a height of 6,000 ft. The culture of the Thu- 

 ,' simple. Th( y begin growth natur- 

 ally at the end of February or early in March. As 

 soon as new growth is visible the plants should 

 be given new material, consisting of fibrous peat 

 or fern root and sphagnum mi\ed with lo-im and 

 some sand and potsherds for drainage. In their 

 home the plants are said to be epiphytic, 

 and when treated as terrestrial orchids their na 

 tive habit may be imitated b\ sf ttins thi m well above 

 the pot, which should not br t 1 1 1 1 1 thf hist 4-6 

 weeks until the 5 oung roots li 1 1 1 .growth, it 



is necessary to apply watei SI 1 i _h 1 In in is are ^ery 

 rapid-growing orchids and m u I I ' 11\ sii| plud 

 with liquid manure until the tiid . t 1 



son, which occuis about the middli n 



after this the lea\es fall The old si 1 is 



condition and serve as food resell 1-,' 



growth of the neit season, but althi n n 



the plant two ^ears thev form no le i\ 

 son. During the resting period thei 1 



rather dry atmosphere and be given 1 i 



to prevent the stems (pseudobulbs) ii ui 1 111-, 



This is one of the few orchids which can be piuhtabh 

 propagated by cutting the old stems into lengths of 

 about 6 in. and rooting them in sand or sphagnum. 

 When rooted the young plants may be potted in the 

 usual way. A temperature of 60°-65° is favorable dur- 

 ing the growing season. 



ilha, Reichb. f. {PhAhis dlbtis, Lindl.). Fig. 2502. 

 Suberect, 2-3 ft., clothed with sheathing, oblong -Ian- 



