i4- 



EVAXS 



and the other by Mr. S. Okamura, of Kochi. The majority of 

 the specimens in both collections came from the province of 

 Tosa. Most of the species noted are additions to the Japan- 

 ese flora and include 5 which are here proposed as new. Of 

 these new species 2 have already been named in manuscript 

 by Herr F. Stephani, of Leipzig, but have not yet been 

 described. All of the species noted belong to well-known 

 genera, and more than half are Lejeuneag. Among the latter 

 is one species which affords an interesting link between the 

 genera Harpalejeunea and Drepatiolcjeunea. At least 3 other 

 Lejeuneae, new to Japan and apparently to science, also occur 

 in these collections. Unfortunately they are represented by 

 sterile specimens only, and it has therefore seemed wise to post- 

 pone their description until more complete material can be 

 examined. The types of the new species are deposited in the 

 herbarium of the writer, at New Haven, Connecticut. 



1. METZGERIA QJJADRISERIATA Evans, new species. 



(PI. VI. figs. 1-5.) 



Pale yellowish green, growing in depressed mats ; thallus 

 prostrate, repeatedly dichotomous, occasionally giving rise to 

 adventitious branches from the margin or from the postical sur- 

 face of the midrib, well-developed branches about 0.7 mm. wide 

 and from 1.5 to 3.5 mm. long between the forks, plane or slightlv 

 convex; midrib 0.08 mm. wide, bounded both antically and 

 postically by 2 rows of cells, smooth above, bearing a few scat- 

 tered and simple cilia below ; wing mostly from 5 to 8 cells 

 broad, smooth on both surfaces but ciliate on the margin, the 

 cilia scattered and borne singly, usually shorter than the width 

 of the wing, straight or slightly contorted, blunt at the apex or 

 irregularly branched ; cells of the wing plane or slightly con- 

 vex, their walls more or less thickened and sometimes with 

 indistinct trigones, not varying much in size in different parts 

 of the thallus, averaging 42 x 28, u; inflorescence dioicous ; 

 female branch broadly orbicular-obovate, 0.35 mm. long, slightly 

 emarginate at the apex, rather closely ciliate on the margin and 

 usually bearing a few cilia on the postical surface, the cilia 

 similar to those found on the thallus ; remaining parts not seen. 



