20 THUNTA. 



a different colour, in which the middle lobe of the lip is longer in 

 proportion to the entire length of that organ, and more oblongs and 

 the column wings toothed. 



T. Marshalliana. 



Stems, leaves, and inflorescence as in the two preceding, except that 



the stems are usually more robust and taller ; sepals and petals white, 



as is the basal half of the lip, the distal half is yellow, and the 



fringed lines orange-yellow. Compared with Thunia alba and T. Ben- 



sonice the lip is shorter, the hairs forming the fringe of the lamellae 



longer and more numerous ; the column is shorter and stouter, with 



the apical wings more dilated. 



Thunia Marshalliana, Echb. in Linnrea XII. (1877), p. 65. Kegel's Gartenfl. 1882, 

 t. 1098. Williams' Orch. Alb. III. t. 130. 



sub-var. — ionophlebia. 



Central area of lip pale yellow, the side areas white streaked with 

 purple. 



T. Marshalliana ionophlebia, Rchb. in Gard. Chron. XXIV. (1885), p. 70, 

 We find no record of the habitat of this plant beyond the meagre 

 statement that it is a native of Moulmein^ where it may be assumed 

 to grow under the same climatic conditions as Thunia Bensonice. 



HYBRID THUNIA. 



Up to the present time, the hybrid described below is the only 

 one raised by hand, and this, curiously enough, was obtained by 

 two operators from Thunia Marshalliana X T. Bensonioi, first by 

 the late Mr. Toll of Manchester, and shortly afterwards by Seden 

 in our Chelsea nursery. Plants in flower from both progenies were 

 exhibited simultaneously at one of the Eoyal Botanic Society's shows 

 in 18S.5 — Mr. Toll's under the name of T. Wrigleyana, in compliment 

 to Mr. E, G. Wrigley, of Howick House, Preston, and our own as 

 T. Veitchiana; but as the materials for description were supplied 

 to the late Professor Reichenbach from the Chelsea seedling, our 

 name has priority of publication. 



Thunia Veitchiana. 



Sepals and petals white with a flush of mauve-purple towards their 



tip ; side lobes of hp white, intermediate lobe rose-purple with the 



fringed raised lines orange-yellow. 



Tlmnia A^eitchiana, Rchb. in Gard. Chron. XXI II. (1885), p. 818. T. Wrigleyana, 

 Horc. 



