of the Tribe Trigonanthee. 15 
Hawaiian Islands (Remy, Gaudichaud). Hawaii (Baldwin). 
Molokai (Baldwin). Oahu: Nuuanu, Konahuanui (Cooke). 
This species is rather close to B.*cordistipula. The plants are 
longer, the stems are rarely dichotomously branched, the leaves are 
narrower, less imbricated, the underleaves are smaller and are not 
imbricated, the leaf-cells are thicker walled, with smaller trigones, 
and at the apex are much smaller. 
Bazzania Nuuanuensis sp. nov. 
Puate HI; ricures 23-31. 
Plants green, loosely cxspitose: stems more or less ascending, 
falsely dichotomous; flagella numerous, slender: leaves alternate, 
closely imbricated to the apex, spreading, subfalcate, broadly ovate, 
antical base arching over the stem, subcordate, postical base not 
decurrent, line of insertion curved slightly inward, apex truncate to 
rounded, margin slightly undulate : underleaves more than twice as 
broad as stem, transversely or subobliquely imserted, approximate, 
orbicular, cordate at the base, apex retuse or truncate ; leaf-cells at 
apex of leaf thick-walled, cavities slightly irregular, trigones large, 
often confluent, in the middle somewhat elongated, cavities substel- 
late, trigones large, at the base elongated, with intermediate thicken- 
ings and large, more or less orbicular trigones, cells along margin 
similar to those at apex. 
Stems 0.37" in diameter ; leaves 1.15™"x1.1™™, leaf-cells at apex 
22ux20p, at middle 35ux27p, at middle near base 504x284; under- 
leaves 0.6™™x0.8™", cells at middle of underleaf 30ux24p. 
Oahu : western ridge of Nuuanu (Cooke). 
This species is closest to B. cordistipula among the Hawaiian 
Species: it is easily distinguished by its apex not being toothed ; 
its leaves-also are broader in proportion to their length, the cells are 
slightly larger, and the underleaves are slightly smaller and not so 
closely imbricated. 
Bazzania Didericiana Steph. 
Mastigobryum Didericianum Steph., Hedwigia, xxiv, 249, pl. III, fig. 2, 1885. 
Bazzania Didericiana Steph., Bull. de ’Herb. Boissier, v, 841, 1897. 
PLATE IV ; FiGuRES 1-13. 
Plants yellow-green, densely czespitose : stems robust, sparingly 
branched, ascending; flagella numerous, slender, microphyllous: leaves 
imbricated, spreading, subfalcate, obliquely ovate, antical base arch- 
