bb Evans: HeparicAE OF PUERTO RIco 
type specimen was much to be desired. This has been cape 
supplied by Prof. Dr. H. Graf zu Solms-Laubach, of Strassburg, 
where the herbarium of Nees von Esenbeck is preserved. Under 
Lejeunea catenulata two specimens are to be found. The first is 
labeled as follows, in Nees von Esenbeck’s handwriting : “ Phrag- 
-micoma catenulata N, ex herb. Sieber Am. sept. in Veckera abietina 
v. Flotow.’’ This specimen undoubtedly represents the type of 
the species, and a portion of it, which was sent to the writer for 
examination, agrees in all respects with the specimens from Puerto 
Rico and Jamaica. The inscription on the second specimen is in 
Gottsche’s handwriting and reads as follows: ‘ Lejeunia floccosa 
Ld. Java. An Hymenophyllum welches sie mit etwas /. cucullata 
als Original dieser letzteren an Lehmann geschickt hatten. Diese 
Pflanze wiirde sich eher als f ixcompleta bei Phragmicoma catenu- 
‘ata unterbringen lassen.” This specimen consists of a single 
small stem, which Count Solms refers without question to the Z. 
fioccosa of the Synopsis, or, as it is now called, Cololejeunea floccosa 
(Lehm. & Lindenb.) Schiffn., a tropical species confined to the 
islands of eastern Asia. Unfortunately the label on the type 
specimen does not indicate the part of “ North America” where it 
was found. In all probability it came from one of the Antilles, 
since Sieber’s collectors in North America confined their attention 
to these islands.* This being the case the moss mixed with the 
type must have been incorrectly determined, the true Nechera 
abietina Hook., or Dendroalsia abictina E. G. Britton, being re- 
stricted to the region west of the Rocky Mountains from British 
Columbia to California. At all events Neurolejeunea catenulata 
does not seem to have been collected recently except in the West 
Indies. + 
Even when sterile, MV. catenulata is an easily recognized species. 
It forms brownish tufts which cling closely to the substratum, and 
its plane and appressed leaves are usually distinctly glossy, espe- 
cially when dry. The false nerves and the patches of hyaline cells 
at the tips of the lobes are also very striking features. Apparently 
the hyaline cells enable the leaves to cling more closely to the 
ili eis pen ieee eset ce 
* Allgem. Deutsche Biog. 34: 177. 1892. 
t In the Nat. Pflanzenfam. Schiffner accredits 
the species to Africa but does not 
state his evidence. 
