1800 



THUNBERGIA 



THUNIA 



Var. ISevis, Clarkp, is ..'lalir.ius. B.M. 1881. L.B.C. 

 20:1913. \'ar, vestita, (Jhirkf, is lucre hairy and tin- 

 flowers are liOt fra^^rant. 



4. ertcta, T. Anders, (iliijhnu tn'cta, Bcntli.). 

 Shruli, 2-4 ft. hifjh.with loose spreading: braiielu-K, hall- 

 erect: Ivs. opposite, peti(d:ite. ovate or subrlioiuboid. 

 siiaiotli. entire or sinuate-tcM.tljed : Hs. solitary on axil- 

 lary pedniieles; calyx cut into 12-14 short teeth, con- 

 cealed hy the large bracts; corolla funnelforni; ttibe 

 curved, deep yellow within; limb purple, l'.j-2 in. 

 :eT<iss. of D subrotund 



.ib(-ord;ite lobes. Tro]i. 

 W. Africa. B.M. .501::. 

 P.S. 11:109.S. R.H. 186:!: 

 2.-.I. I.H. 3:99. F. 185.S; 

 22.5. ..T.H. III. 28:35.- 

 A greenhouse, shrub, 

 prodticin,^' Hdwers freely 

 It ilnn st -tn\ seas* n 

 Ui \\ ^ m the ( f)en ni 

 FI n I N t a I linil 

 ir alba, Hi IK 



2501. Thunbereia erandiflora (X --). 



white. Ym-. ca3rtlea, I-Iort. Fls. lar-p, intense violet, 

 with orange throat. 



5. clirysops, Hook. Stem climbing, slightly hairv: 

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

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

 orcampanulate; tubeyellow, limb purple, bluish around 

 the throat. Sierra Leone. B.M. 4119. FS 1-5 P 51 

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

 become somewhat erect if grown in a coolhouse. 



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

 Ivs. br.Kidly ovate, anguhirly corchdc- and tuctlied nr 

 lobed, somewhat rimgheiied on bdth sides, petiolate: 

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

 bright blue, becoming whitish in the thr(i:d ; corolhi- 

 tube liell-shaped; limb 3 In. across, of 5 hirge. spread- 

 ing rounded lobes. Beng:d. ii.JI. L':;i;r, |> AI 7-::l'i 

 L.B.r. 4::;24. B. 2:70. B.R. 0:495. (in. 47 ■ Km:; IF 

 42:32. ({.(!. III. 9:789. -A very large pereind:d green- 

 house climber; flowers during the summer or autumn. 

 There is also a white-flowen-d variety. 



7. latirifolia, Limll. ( T. //e'cc/;;/!'. Hook. 'J', (/ra mli- 

 lliini . Wall. ). Stem terete. smo.,tlj except the yo'ungesl. 



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 axillary whorls 

 or in a raceme in which they are also clustered or 

 whorled; corolla with a wide, oldique trumpet-shaped 

 tube anil a large 5-lobed limb. India. B.M. 4985- 4998 

 F.S. 12:1275. Gn. 12, p. 420; 30:563 and p. 293 ' R h' 

 1860, p. .3-12. J.H. HI. 28:.345. Gng. 3:295.-Perenniai 

 greenhouse climlier, flowering profusely in winter. 

 Propagated by cuttings. 



8. MysorSnsis, T. Anders. {]Iixa<:evtr!x Mi/sori'iisix 

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

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

 entire or siouewhat distantly toothed: racemes long[ 

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

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

 concave, with reflexed side lobes, lower lip of 3 sub- 

 ual spiptding lobes. India. B.M. 4786. F.S. 8:752. 

 M 2 p 1 —A tall greenhouse climber which flowers, 

 rordiiig to tieatment, at all seasons. 

 9 coccmea, Wall. {Uexac^ntris eoccinea, Nees). A 

 very tail 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. 

 2;i:2447. R.H. 1890, p. 197. 



Heinrich Hasselbring. 

 THtNIA (Count Thun-Tetschen, who 

 liad an important collection of orchids 

 ibout the middle of the 19th century). 

 ('hrhidc}c('(r^. A small genus of which at 

 present only 5 species are known. These 

 ire tall plants with annual leafy stems 

 terminating in a raceme of showy flow- 

 ers. The genus was formerly united 

 with Phaius, from which it differs by 

 the terminal inflorescence. Sepals and 

 f etils similar, spreading; labellum convolute over 

 the column, spurred, ornamented with several 

 iLSts ronsistingof lines of fleshy hairs: pollinia 

 8 fls subtended by large membranous bracts. 



The species of Thunia occur in northern India, 

 Purmi tnd in the S. Himalaya region ascending 

 to t hi ight of 0,000 ft. The culture of the Thu- 

 iiias IS very 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 mixed with loam and 

 some sand and potsherds for drainage. In their 

 native home the plants are said to be epiphytic, 

 and when treated as terrestrial orchids tbeirna- 

 tive habit may be imitated by setting them well above 

 the pot, which should not lie too large. For the first 4-ii 

 Aveeks until the young roots have made good growth, it 

 is necessary to apply water sparingly. Thunias are very 

 rapid-growing orchids and may be liberally supplied 

 with liquid manure until the end of the flowering sen- 

 son, which occurs aliout the middle of August. So- n 

 after this the leaves fall. The old stems winter in tins 

 condition and serve as food reservoirs for the youuK 

 growth of the next season, but although they remain en 

 the yihint two years they form no leaves the second sea- 

 son. During the resting period they should be kept in a 

 rather dry atmosphere and be given only enough water 

 to prevent the stems (pseudobulbs) from shriveling. 

 This is one of the few orchids which can be profitably 

 propagated by cutting the old stems into lengths e£ 

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

 When rooted the young plants may lie potted in the 

 usual way. A temperature of 00-'-(;5° is favorable dur- 

 ing the growing seaseni. 



alba, Reicbb. f. (rae/u.^ ii7(ih.s', Liiidl.). Fig. 2502. 

 Sulierect, 2-:i ft., clothed with sheathing, oblong-Ion- 



