648 



orchid-gbowee's manual. 



very large, from 3 to 3 J inches in diameter ; the oblong obtuse sepals and the 

 more wedge-shaped shorter petals are white deeply tipped with chocolate-purple, 

 the tint of which seems to vary in the different varieties we have seen ; the lip is 

 trowel-shaped, three-lobed, ochre-coloured or white, with the whole surface except 

 the margin covered with short purple-tipped papillae, pa/pulae radiantes as Prof. 

 Reichenbach calls them, ranged in lines ; the ruff or callus at the base consists of 

 nineteen lamellae, sulphur-coloured with brown keels, and the column is yellowish 

 washed with brown and purple. Several varieties have been observed. — Ecuador. 



FlQ.— nil. Sort., 3rd ser., t. 431 ; Orchid Album, i. t. 17; Paxton, Fl. Gard., 

 reissue, t. 21 ; Veitch's Man. Orch. PI., ix. p. 53 ; GaHcnJlora, 1890, t. 1324. 

 S YN . — Zygopetalwm Klaboclwruni . 



P. LEHMANNI, Bchh.f. — This is one of the most charming species of Pesea- 

 torea, resembling in habit its congeners, being bulbless, with linear lorate acute 

 leaves, from 1 to 1| foot in height, and about an inch broad, the solitary flowers 

 emerging from their axils. These flowers are large, from 3 to 3| inches across, 

 and very showy ; the sepals and petals are broadly cuneate oblong, white with 



PESCATOKEA LEHMANNI. 



close curved parallel lines of reddish-purple extending nearly to the edge ; and 

 the lip is deep mauve-purple, the anterior portion oblong, revolute, retuse, and 

 covered with long bristle-like papillae of a purple tint, the callus or ruff of about 

 eleven ridges being of a chestnut-brown colour. It appears to bloom at different 

 times of the year. — Ecuador. 



Fig. — Orchid Album, ii. t. 57 ; Gard. Chron., N.S., xvii. p. iT>, i. 5 ; L' III. Hort., 

 xxix. t. 471. 



Syn. — Zygopetalum Zehmanni. 



P. ROEZLII, Bchh. f. — This is a very distinct plant, though allied to P. Bayana. 

 It seems to vary a great deal in the colouring of its large flowers ; in the form 

 usually met with the oblong sepals and cuneate obovate petals are white, beauti- 

 fully tipped with violaceous lilac or purplish-rose, and the blade of the lip, 

 excepting the callus, is of the same showy colours. — Ecuador. 



