132 Evans: TAXILEJEUNEA PTEROGONIA 
in Herb. Montagne); and y*, columbicus (Merida and Tovar, 
‘Venezuela, Moritz 83). The suspicion is thereby aroused that 
their O. debitlis may have been an aggregate. 
Gottsche, in his Mexikanske Levermossor (p. 272), adds 
further details about O. debilis, and especially about the Mexican 
specimens. He states that these are somewhat smaller than the 
St. Vincent specimens and gives measurements of the leaves and 
underleaves in a* Liebmanianus (539a) and in a** (309), as follows: 
lobes, 0.8-1 x 0.75-0.85 mm.; lobules, 0.13 x 0.1 mm.; underleaves 
0.8-I x 0.75-I mm. He calls attention also to the crenulate 
margins of the leaves and underleaves. 
In Stephani’s revision of the Lindenberg specimens he accepts 
as correctly determined most of those listed in the Synopsis, so 
far as these are represented. The only exception is the y, colum- 
bicus, which he regards as a mixture of T. debilis and T. pterogonia, 
as already noted under the latter species.* He cites T. debilis 
further from Martiniquet and also from Guadeloupe, thus ascribing 
to it a wide geographical distribution in both North and South 
America. In his Species Hepaticarum (p. 463), however, where 
he assigns a dioicous inflorescence to the species, he restricts its 
range to the ‘‘Insulae antillanae,’’ but does not state what dis- 
position he makes of the Mexican, Venezuelan and ‘‘ Peruvian”’ 
specimens which he had formerly referred to T. debilis. Neither 
does he indicate in any way which specimens served as the basis 
for his description of the perianth and involucral leaves. On the 
whole his account of the perianth does not differ greatly from that 
of Montagne; he states that it is clavate, three times as long as 
wide, truncate at the apex and armed with very irregular laciniae, 
adding that the ventral keels are short, widely divergent and 
similarly armed, and that the beak is long and slender. His 
account of the bracts is more at variance; he describes the lobe as 
narrowly lanceolate, about half as long as the perianth, acute and 
entire; and the lobule as small, linear, obtuse and not discrete 
from the lobe. 
* His statements regarding +, columbicus, have since been confirmed by Schiffner 
(Bot. Jahrb. 23: 579. 1897). 
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