ZYGOPETALUM. 763 



Z. MACKAYI CRINITUM.-See Z. crinitum. 



Z. MACKAYI INTERMEDIUM, Sort— A very &ne and- distinct plant, having 

 the leaves longer than in Z. Mackayi. The flowers are of a paler colour than in 

 the type, with a fine large expanded lip, and are produced during the winter 

 season. — Brazil. 



Z. MARGINATUM.— See Warscewiczella velata. 



Z. MAXILLARE, Loddiges. — A free-flowering and handsome species, producing 

 its drooping spikes at different times in the year, and keeping in beauty for a 

 long time. We have had this species with seventy flowers on a plant at one 

 time. It has oblong furrowed pseudobulbs, lance-shaped nervose leaves attenu- 

 ated to the base, and large showy flowers on radical scapes ; the ovate oblong 

 acute sepals and petals are green, transversely blotched and barred with 

 chocolate-brown, and the lip, which has a blunt spur and a large roundish front 

 lobe, is of a rich bluish-purple ; the large frill or rutt' on the disk is of a deeper 

 purple, crenate, shaped like a horse's hoof (unguliform) and united to the small 

 erect lateral lobes of the lip. This will do well on a raft or in a basket. — Brazil. 



Fig.— Lodd. Bot. Cab., t. 1776 ; Bot. Mag., t. 3686 ; Paxton, Mag. Bot., iv. p. 271, 

 with tab.; Gartenflora, 1879, p. 345, with fig.; Hooh. First Cent. Oreh. PL, t. 72 ; Veitch's 

 Man. Orah. PI., ix. p. 59. 



Z. MICROPTERUM. — See Pbomenaea microptera. 

 Z. ROLLISSONI.^See Prome.yaea Rollissoni. 



Z. ROSTRATUM, Hooker. — A showy and rare free-flowering species, which 

 blossoms three times a year, and lasts six weeks in perfection. This makes a 

 fine exhibition plant when well grown. We have shown it with twenty or more 

 flowers, and grown like this it is a beautiful object. It requires more heat and 

 moisture than any of the other species. The plant has a creeping rhizome, forming 

 at intervals an oblong-ovate sub-compressed pseudobulb ; the leaves and scapes 

 appear on the young growths, the former lanceolate acute plaited, the latter 

 one- to two-flowered, radical ; the flowers are large, 6 inches in depth, the dorsal 

 sepal and two petals linear-lanceolate, 3 inches long, whitish at the base, then 

 green with the centre marked with dull brownish-purple; the lip is ovate 

 recurved, nearly 8 inches long, white, yellowish behind the disk, which bears a 

 small ungulate frill or ruff of pale lilac-purple, about ten lines of the same 

 colour radiating from it towards the front. — Demerara. 



Fig. Bot. Mag., t. 2819 ; Sooh. First Cent. Oroh. PI., t. 70 ; Lindenia, ii. t. 68 ; 



Journ. of Hurt., 1894, xxvili. p. 7, f . 1 ; Orchid Album, ii. t. 78. 



Syn. — Zygosepalon ro.ttratmn. 



Z. RUSSELLIANUM —See Pescatorea Btisselliana. 



Z. SANDERIANUM, Begel.— This plant was at first distributed by Messrs. 

 Sander & Co. as Z. Gautierii, which, indeed, it much resembles in habit. The 

 sepals and petals are yellowish-green spotted at the base with purplish-brown ; 

 lip roundly obovate, blue with a purplish ha.ae.— Native country not stated. 



Fia.— Gartenflora, 1890, t. 1287. 



