450 A.W. Eg mis — Hmoaiian Hepaticoe of the Tribe Jubidoideoe. 



C. ceatocarpa is apparently the commonest Cololejeiinea on the 

 Islands. It sometimes grows in company with C. lanciloha (as in 

 Heller's specimens), but can be separated from this species even 

 when dry from the fact that its leaves do not adhere closely to the 

 substratum. More closely allied to it than any of the other Hawai- 

 ian species are C. erigens Spruce* of South America and G. Goehelii 

 (Gottsche) SchifFn.f of the East Indies. In the fii'st, the leaves are 

 narrower and more obliquely spreading and show curious bluntly 

 conical papillse on the cells, particularly those at and near the apex. 

 The papillae project at right angles to the surface of the leaf and not 

 beyond the margin, as do the differently shaped marginal papillte 

 sometimes formed on the leaves of the Hawaiian plant. The East 

 Indian species is still closer to C. ceatocarpa and may prove to be 

 identical with it : the marginal denticulations or ci-enulations in this 

 species are, however, always present (although in Schiffner's var. 

 Acrotremce they are very scanty) and are scattered along the whole 

 margin, instead of being confined to the apical region. The 3 

 bracts also are described as semiglobose, where as in C. ceatocarpa^ 

 they are more like the ordinary leaves. The specimens collected by 

 Cooke and by Heller agree closely with Angstrom's type. 



4. Cololejeunea ovalifolia sp. nov. 



Plate LVUL, figs. 1-6. 



Dioicous : brownish-green (at least when dry), closely adherent to 

 substratum : stems irregularly pinnate : leaves distant, the lobe oval 

 or ovate, rounded at the very narrow base and at the apex, entire ; 

 lobule oval, inflated at the base, keel arched, free margin more or less 

 involute in lower part, ending in a blunt apex, then obliquely trun- 

 cate and bearing a small tooth tipped with a papilla between apex 

 and end of keel, lobule often much reduced ; stylus a single cell, 

 of ten obsolete : leaf-cells thin-walled, without trigones : ? inflores- 

 cence borne on a principal branch, innovating on one side, the inno- 

 vation often floriferous ; bracts unequally bifid, the lobe obovate^ 

 rounded at the apex, entire, lobule very narrow at the base, broader 

 and apiculate at the apex, entire or bearing two or three blunt teeth 

 formed from projecting cells; perianth obovate or cuneiform, not 



* Lejeunea obliqua Spruce, Hep. Amaz. et And. 298. 1884 (not Mont.). 



Lejeunea erigens Spruce, 1. c. (as synonym). 



Cololejeunea erigens Spruce, Hep. Spruceanae. 1892 (exsic). 

 f Nova Acta Acad. Caes.-Leop. Ix, 240. pi. 10. f. 1-10. 1893. 



