84 LEJEUNEA HOLTI, A NEW HEPATIC FROM KILLARNEY. 
TE 272.—Fig. 1. Plants, natural size. 2. Portion of stem, slightly mag- 
nified, showing lateral perianths and male catkins. 3. Upper side of part of 
stem, more magnified. 4. Underside of ditto. 5. Single leaf. 6. Under-leaf. 
7. Cells of leaf-apex. 8 and 9. Portion of stem, with a erianth, the under- 
leaves removed to show the exact insertion of the female branchlet. 10. Section 
of perianth. 
This fine species, entirely new to science, was found by Mr. 
Holt, of Manchester, during a visit to Killarney in the summer of 
1885. It differs from every other European Lejeunea in the female 
flowers being borne on exceedingly short branchlets, which normally 
put forth no subfloral innovation, such as constantly exists in all 
our other species. Very rarely is there present a minute micro- 
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differs at sight from both by the pale reddish tinge of the foliage. 
Hiven where the leaves are of the yellow-green of just-ripe limes, 
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pear-shaped perianths being so very strongly and sharply keeled 
that at first sight they seem broadly 5-winged. In some perianths, 
indeed, the sutures of the lateral keels are not so exactly valvular, 
but that one of the flower-lobes projects slightly beyond the other 
so as to form a limb, or rim, of a single cell in width. In other 
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folia Nees, L. minutissina Sm., L. inundata Spruce, &c.), such as is 
n 
or green foliage of L. flava. The latter, besides the essential 
difference of the perianths being terminal on branche ) 
engths, or € main stem, and invariably putting forth from 
