220 THE JOURNAL OF BOTANY 



from Mauritius (Flora Mixta, no. 170), and that Gottsche's descrip- 

 tion does not apply to any of the Western species — Gottsche's 

 accurate and illuminating descriptions are unrivalled — induces me to 

 consider that L. Sieberiana is not the species which Stephani names 

 as coming from Dominica. 



I have now to consider whether the plant is the same as L. chcero- 

 phylla, which species I have had the advantage of studying in the 

 specimens distributed by Spruce in Hep. Spruceanse. In O. Armitagei 

 the leaves are more horizontall}' inserted, plane not crisped, not widely 

 incurved at the postical margin, becoming almost funnel-shaped as 

 Spruce aptly describes them ; antical margin spinulose-serrate, some 

 spines hamate, not coarsely dentate, postical margin with usually two 

 large teeth or segments (as in L. hinulafa), one or two smaller teeth 

 frequently added, not more regularly coarsely dentate ; lobule not 

 saccate, broader than high, not the reverse : perianth more broadly 

 pyriform, not cuneate oblong or subcordate, winged to about a third, 

 not nearly to the base ; bracts oblong, serrulate, not oval and distantly 

 coarsely dentate ; bracteole oval-spathulate, sometimes slightly retuse, 

 not oval-rotund or suborbiculate ; amentula longer and narrower, 

 very graceful, with bracts oval, rarely subacuminate ; bracteoles 

 oblong not oval. 



In the Manchester Museum there is a specimen named " Lejeunea 

 lunulata var. paucidenfata Brasilia, opp. Caldas, Oct. 1854, G. A. 

 Lindberg S.O.L." : this is monoicous, with short and broad amentula ; 

 the leaves are crumpled and I cannot find any character to distinguish 

 it from O. chceropliylla. Specimens distributed in Hep. Cub. 

 Wrightiana; (named L. lunulata, so far as those in the Manchester 

 Museum are concerned), as well as a specimen vaguely named 

 " L. lunulata Weber, Hepatic in thick wood, M.V., Feb. 13," are 

 both monoicous and I should refer them to O. cliceropliylla. 



O. august if oUa St., a monoicous species from Dominica, according 

 to the description of Stephani in Sj). Hep. agrees in having two large 

 teeth on the postical margin of leaf, but differs in the more oblong 

 leaves, with acute apex, very large underleaves, 5 times broader than 

 the stem, obcuneate-rotundate ; perianth narrowly pyriform, very 

 long, 2-75 mm., nearly 3 times longer than O. Armitagei, 



Cyclolejeunea conyexistipa (Lehm. & Lindenb.) Evans. 

 Hah. Mountain Lake, Dominica, Jan. 1896. 



Ohs. Of this remarkable species an admirable description is given 

 by Evans, /. c. 198. The leaves on some of the branches differ so 

 widely from the stem leaves that you would naturally consider them 

 as belonging to another species. 



The specimens in the Manchester Museum of C. convexistipa 

 (Hep. Cub. Wrightiante) agree exactly with these from Dominica. 

 Specimens named " X. convexistiim L. & L., i. patinifera Tayl. MS. 

 Jamaica, Dr. Wright, Herb. Greville" differ slightly, but I think can 

 only be referred to this : the disc -like gemmae which are found on 

 the margin of the leaves of this genus are present on the plants. 



O. stdchydada Spruce, which has been reduced to a synonj^m of 



