556 Evans: HepaticAE oF Puerto Rico 
On twigs. Santurce, Heller (838). The species also grows 
on living leaves, and has been recorded from the following addi- 
tional localities: Mexico, Liebmann (the type specimen of L. Cre- 
scentiae), Haenke (the type specimen of P. Haenkeana); Costa 
Rica, Tonduz,; Cuba, Wright, Leibold (the type specimen of C. 
Leiboldii), Underwood, Mrs. Britton ; Brazil, Liebmann (the type 
specimen of ZL. Lehmanniana), Spruce (the type specimen of /. har- 
paphylla), Ule. 
Largely through the kindness of correspondents the writer has 
been enabled to examine type material of ZL. Lehmanniana and 
L. Crescentiae and authentic material of L. harpaphylla and C. Lei- 
boldii. P. Haenkeana is still known to him from Schiffner’s de- 
scription and figures only, but these are sufficient to indicate that 
the species is synonymous with the others, and Schiffner himself 
admits that it may not be distinct from C. Crescentiae.* Stephani 
has already reduced L. harpaphylla to a synonym of the same 
species. t 
If the original descriptions of Z. Lehmanniana, L. Crescentiae 
and C. Leiboldii are consulted it will be seen that the three are 
very much alike, the most important differences between them 
being derived from the involucral leaves and the perianths. In the 
first the bracts (and also the upper leaves) are said to be apiculate, 
sparingly serrate, or serrulate-denticulate at the apex, the bracteole 
is said to be serrate, and the perianth sparingly ciliate on the margin. 
In the second and third the bracts, bracteoles and perianths are 
said to be entire. 
The type material of Z. Lehmanniana is very scanty. The 
portion from the Lindenberg herbarium studied by the writer 
consists of two fragments, one with a perianth and two male 
inflorescences, the other with two perianths. The perichaetial 
bracts are irregularly dentate, the teeth varying with respect to 
both number and size (FiGuRE 1). The bract which is most strongly 
dentate shows seven teeth, the longest three cells long and tw? 
cells wide at the base, the shortest consisting of a single slightly 
projecting cell. Other bracts show only one or two teeth, thus 
exhibiting an approach to an entire condition, The lateral keels 
*Bot. Jahrb. 23: 585 (footnote). 1897. 
tHedwigia 34: 234. 1895. 
