THUNIA. 727 



T. ALBA, Hchb. f. — Tlie stems of this handsome species are terete, usually 

 about 2 feet high, clothed throughout with leaves, the lower ones, produced 

 when the stem first begins to lengthen, broad, round, amplexicaul and scale-like, 

 the upper ones also stem-clasping, oblong-lanceolate acute, some 6 or 8 inches 

 long, glaucous beneath, falling during the resting season so as to leave the 

 slender terete stems naked; the flowers are produced on a short dense terminal 

 nodding raceme just as growth is finished; the sepals and petals are pure 

 white, oblong-lanceolate, acute, and nearly equal; and the lip is oblong- 

 cucuUate, rounded at the apex, where it is denticulated, white, beautifully 

 pencilled over the disk and front portion with purple and lilac. The plant 

 under consideration should be potted in good fibrous peat and sphagnum, and 

 during the growing season be kept in the Bast Indian house ; but after the 

 flowers are faded, water must be gradually diminished until it is entirely 

 withheld, when the cool house will suit it best ; care must, however, be taken 

 to prevent its shrivelling while at rest. It blooms during July and August. — 

 Northern India; Burmah. 



Fia.—Bot. Mag., t. 3991 ; Bot. Meg., 1838, t. 33 ; Paxton, Mag. Hot., v. p. 125, with 

 tab. ; Wallich, PI. Asiat. Rai:, t. 198 ; Knowlcs Sj' Waste. Floral Cab., t. 125. 



Sys. — PTuLJUg 



T. BENSONIAE, Hooh. ff. — A beautiful species, with the habit and general 

 appearance of T. alha. The stems are erect, leafy, terete, fascicled, from 1 to 

 2 feet in height, their lower parts clothed with broad roundish reflexed leafy 

 sheaths, which pass upwards into the true leaves ; these are distichous, from 

 6 to 10 inches long, green above, slightly glaucous beneath ; the flowers are 

 large, measuring some 2 or 3 inches across, and produced like those of T. alba, 

 just when growth is finished, from the top of the stem in a short scarcely 

 drooping raceme ; the sepals and petals are spreading, oblong-lanceolate, 

 2| inches long, open, bright magenta, becoming white towards the base ; and 

 the lip is large, open, the side lobes rolled over the column, magenta in front, 

 white at the base, the centi-al lobe oblong, closely frilled at the edge, of a rich 

 deep magenta-purple, the crests forming a broad oblong patch of yellow frilled 

 keels occupying the disk. It flowers in June, and makes a fine plant for 

 exhibition. We have seen as many as eighteen flowers on a spike. — Mountains 

 of Moulmein. 



Fig. — Bot. Mag., t. 5694 ; Jennings, Orch., t. 35 ; Orcliid Album, ii. t. C7. 



T. CANDIDISSIMA, Bchb. f. — This new species is described by Eeichenbach 

 as having the habit and appearance of T. Marshalliana. It has a nodding 

 inflorescence of about 6 flowers; the spur is inflated and bilobed as in T. 

 Marshalliana, the trifid lip having the anterior edges of the side lobes 

 toothed, the mid lobe has filiform processes, and there are also a few similar 

 processes on the disk ; the sepals and petals are white, and the throat is without 

 any yellow colour. It was first flowered by Sir Trevor Lawrence, Bart., who 

 found it on an imported plant of Bendrobium Wardianmn. — Burmah. 



T. DODGSONIANA, Williams. — ^A handsome and distinct species, with erect 

 terete stems, and oblong-lanceolate acute nervose stem-clasping bright green 

 leaves. The flowers are produced in terminal drooping racemes, like those of 

 T. alba, which the plant resembles in its general aspect, the oblong-lanceolate 



