400 THE ORCHID. REVIEW. (APRIL, 1922. 
reproduction, of a still larger Pleurothallis,in which the flowers, though 
smaller, are individually much prettier, being hyaline whitish, with fine 
purple spots. Apparently it isa very much rarer plant, and probably not 
yet described ; unfortunately, the specimen despatched to Kew perished on 
the journey. Two other species of this genus found by Mr. Lankester in 
Costa Rica are Pleurothallis Lankesteri, which flowered at Kew in June, 
1914, and P. costaricensis, in May, 1916. The former is a curious little plant, 
and inconspicuous, owing to the fact that the small deep yellow flowers are 
borne in fascicles below the leaves. The latter species bears an elongated 
raceme, the flower light greenish yellow, with rather darker nerves and lip. 
HELCIA SANGUINOLENTA. 
(| ecient the interesting plants exhibited by Messrs. Stuart Low & Co., 
at the meeting of the Royal Horticultural Society held on February 
28th was Helcia sanguinolenta, a very rare species also known as Tricho- 
pilis sanguinolenta. It was originally discovered on the Ecuadorean Andes 
in 1841, and Lindley, in a note regarding its early history (Botanical Register, 
March, 1845), stated that among the unexamined plants collected by 
Hartweg for the Horticultural Society was a plant supposed to be a species 
of Trichopilia, of which it has entirely the habit. Instead of its column ' 
being rolled up in the labellum, it stands erect and clear of it. Instead of 
the anther having but one cell, it has two. Instead of the anther-bed having 
two lateral lacerated processes it is surrounded by a deep fringed border. 
Finally, instead of the lip being perfectly smooth, continuous, and destitute 
of all appendages at the base, it is contracted about the middle, below the 
contraction furnished with a pair of thick fleshy lobes hollowed out in the 
middle and standing erect on each side of the column, without, however, 
touching it; and the space between those lobes, forming the very base of 
the lip, is a hollow pit. Upon looking at this curious apparatus in front, the 
anther and column look like an old-fashion 
of those starched high collars, 
Elizabeth; or through a horse 
this has led to the name, which 
said to mean the collar of a hors 
ne would rather have imagined 
ed head-dress peeping over one 
such as ladies wore in the days of Queen 
e, though, considering its obvious derivation, 
to signify his traces. 
MAXILLARIA VENUSTA.—A chaiming species originally discovered by 
Linden in 1842 on the Cordillera of Venezuela, in the province of Merida, 
but not introduced until the year 1851, when it was re-discovered by Schlim 
on the eastern Cordillera of Colombia, near Ocana, and sent by him to M. 
oo nursery at Brussels, where it flowered for the first time in Europe 
in 1854. 
