GLEANINGS AND ORIGINAL MEMORANDA. 133 
611. PLEUROTHALLIS PEDUNCULATA. Reichenbach fil. (alias Rhynchopera pedun- 
culata Klotzsch.) A hothouse epiphyte with dingy greenish flowers, 
Native of the Caraccas. Introduced by the Berlin Garden. (Fig. 298.) 
We long ago stated that Dr. Klotzsch’s genus Rhynchopera must be reduced 
to Pleurothallis (Bot. Reg. 1845, misc. 30), and more recently Mr. Reichenbach 
has formally installed it among the species, but with the above name, which 
must, we fear, be relinquished, there being also a Pl. peduncularis from Brazil. 
Karsten's Rhynchopera retusa must share the same fate, as also must our own 
Restrepia vittata, the subject of the next notice. This plant has slender stems 
about six inches long, growing in tufts, each with a single long brown sheath in 
the middle, and another at 
the base; the solitary leaf is 
oval, acute, shorter than the 
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stem and about as long as the weak drooping raceme. The à / 
latter has five or six distant flowers, large for the genus, each ===> ١ | / 
with a white membranous cucullate bract at its base. The 
sepals, petals, and lip, are nearly alike in size and form ; only the two lateral sepals 
are united into one, and the lip is dilated at its base on each side; all are line 
lanceolate and acuminate. Mr. Edward Otto discovered it on the Silla of Caraccas at 
the height of about 5000 feet above the sea, growing both on branches and on the 
ground. The flowers appear in December and last but a short time. 
612. PLEUROTHALLIS HEMIRHODA. (aliàs Restrepia vittata, Lindley, 
in Journ. Hort. Soc. IIT. 815. ic.) A very pretty epiphyte, with white 
and red flowers. Native of Colombia. Introduced by Mr. Linden. 
(Fig. 299.) 
No positive difference appears to exist between the genera Pleurothallis and 
Restrepia, except that the former has two and the latter four pollen-masses. Usually, 
however, the latter have solitary, handsome, brightly-coloured flowers and a pair of 
ears at the base of the lip, and judging from this alone, we referred the present plant 
to Restrepia, But having now had the opportunity of examining its pollen-masses, al 
we find that it is a true Pleurothallis, to which genus we are obliged to refer it, 3 
necessarily changing the specifie name, there is already a Pleurothallis vittata 
from Mexico. The following account of it was given in the Journal of the Horticul- 1 A 
tural Society, from which our cut is also borrowed. <“ This curious thing has the habit ١ 
shorter than the double anterior sepal and blunt. It requires to be treated like the 72 
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