400 A. W. Evans — Hawaiian Hepaticm of the Tribe Juhiiloidem. 



Lihue, Half Way Bridge (Cooke), Hawaiian Islands (Hillebrand, 

 Mann and Brigham). 



The determination of this species is based on the sterile type- 

 material, preserved in the Royal Academy of Science at Stockholm, 

 It is apparently the plant which has been referred by Austin and other 

 authors to the widely distributed and variable F. squarrosa, and it 

 is somewhat questionable as to whether the two are really distinct. 

 When well developed, F. Sandvicensis is a little more robust than 

 i', squarrosa, its leaves are less strongly squarrose, and its leaf-cells 

 have somewhat better developed trigones. The underleaves, how- 

 ever, offer the best point of distinction: these are much broader 

 than in F. squarrosa, often completely concealing the lobules, they 

 are less deeply bifid, with broad lobes and sinus, and their margins 

 are usually entire. These differences, although slight, are appar- 

 ently constant. The distinctive characters between this species and 

 I<. Aongstroemli have already been pointed out and there is little 

 likelihood of confusing it with any other Hawaiian species. 



III. Subgenus Diastoloba Spruce. 



4. FruUania apiculata (R. Bl. & N.) Dnm. 



Jungermannia apicidata R, Bl, & N. Nova Acta Acad. Caes,-Leop. 



xii, 222. 1825. 

 Fridlania apicidata Dum. Receuil d'Obs, sur les Jung, 13. 1835. 

 Fridlania explicata Mont. Ann. des Sc. Nat. II, xix, 256, 1843, 

 FruUania oceanica Mitt.; Seemann, Flora Vitiensis, 417. 1871, 



Plate XLVI. 



Autoicous : plants growing in wide depressed tufts, dark red 

 varying to blackish or greenish : stems more or less regularl}- pin- 

 nate: leaves imbricated, the lobe ovate, arching over the stem but 

 scarcely if at all cordate at base, decurved and abruptly apiculate 

 at the apex, entire; lobule clavate, sometimes short enough to be 

 called galeate, distant from the axis, truncate at base, inflated 

 throughout ; stylus minute, close to the lobule, borne on a broad 

 reflexed base ; underleaves subimbricated, broadly orbicular, some- 

 what cordate at base, bifid about one-third with acute lobes and 

 sinus, margins entire, plane or slightly reflexed, sometimes revolute 

 close to the base : leaf-cells Avith thick reddish walls, trigones and 

 intermediate thickenings conspicuous, often becoming confluent : ? 

 inflorescence borne on the main stem or a principal branch; bracts in 

 three or four pairs, unequally bifid, the lobe ovate-lanceolate, acumi- 



