LINDLEY ON PERUVIAN ORCHIDEZE. 9 
1. Pleurothallis cordata. Lindl. Gen. and Sp. Orch. p. 5.— 
Turuencho, near Cuenca, Prof. Wm. Jameson, Dec. 1831. 
The only specimen is, like that in Mr Lambert’s herbarium 
from Pavon, destitute of flowers; it is also rather smaller. 
2. Pleurothallis caulescens; caulibus ascendentibus foli- 
osis gracillimis, foliis membranaceis patentibus vaginantibus 
lineari-lanceolatis vix costatis, racemis 2-3 terminalibus erec- 
tis subsecundis caulium longitudine, bracteis ochreatis ovatis 
acutis, sepalis lanceolatis lateralibus subconnatis; petalis ova- 
tis acutis duplo brevioribus, labello postico unguiculato ovato 
obtuso obsolete trilobo complicato.—Sent from near Cuenga 
by Professor Wm. Jameson. 
This is the only species of Pleurothallis yet discoverd in 
which the stem bears more than a single leaf. In this, the 
early formed leaves, which are usually very little developed, 
and which remain upon the stem in the form of sheathing 
scales, acquire a lamina, while the terminal leaf, no longer 
supplied with superabundance of food, does not arrive at a 
_ size disproportionately great to those that were first developed. 
The leaves are from half an inch to an inch in length, and 
exceedingly narrow. The flowers are pale yellow and whole- 
coloured. 
3. Pleurothallis macrorhiza ; foliis lineari-oblongis acutis 
carnosis basi valde angustatis cum petiolo articulatis, pe- 
dunculo bi-trifloro erecto capillari foliis subzequali v. longi- 
ore basi cum petiolo laxe vaginato, sepalis ovato-oblongis: 
lateralibus fere ad apicem connatis; petalis cuneatis, labello 
ovato obtuso basi cucullato petalis duplo longiore.—Near Cu- . 
enca, Professor Wm. Jameson. 
This is a species remarkable for the great length and thickness 
of its roots in proportion to its stem and leaves ; they creep over 
the surface of bark among mosses, and extend to the distance 
of four or five inches on all sides; so that a plant, not more 
than two inches high, is provided with the means of procuring 
its nutriment from a circle two feet and a half in circumference 
If trees occupied ground in the same proportion, we should 
have no forests, for a tree only sixty feet high would require a 
Seconp Serres. — B 
