of the Tribe Trigonanthee. 3a 
Cephalozia Baldwinii sp. nov. 
Puate XIII; ricures 1-9. 
Paroicous: plants minute, pale green, scattered among other 
hepatic : stems very slender, pale green or colorless, rarely branch- 
ing from the postical surface, 5 or 6 cells in diameter, cortical cells 
(in about 9 longitudinal rows) much larger than internal cells, 
the latter with uniformly thickened walls ; rhizoids long, colorless, 
in scattered clusters on the postical surface : leaves distant, minute, 
subtransversely inserted, slightly spreading, ovate, unequally bifid 
(about two-thirds), the antical lobe longer and narrower than the 
postical; lobes subulate, spreading, connivent or overlapping, antical 
lobe 2 or rarely 3 cells broad, generally 4 cells long, ending in a row 
of 2 or 3 cells, postical lobe 3 or 4, rarely 2, cells broad, usually 4 cells 
long, ending in a row of 2 cells or in a single cell; sinus obtuse or 
rounded: underleaves wanting: leaf-cells small, cell-walls thin, 
colorless, trigones lacking: @ inflorescence borne on a short postical 
branch ; ? bracts reduced to a single pair, broadly ovate, deeply 
bifid (about one third), bearing a short lateral tooth, lobes triangular 
acute, sinus obtuse ; bracteole ovate, bifid, lobes triangular, acute ; 
perianth cylindrical, without distinct keels, 1 cell thick, mouth con- 
tracted, ciliate, cilia 1 or 2 cells long: ¢ bracts hypogynous, in 2 or 
3 pairs concave, appressed to stem, ovate, bifid, lobes triangular, 
acute, sinus acute or obtuse. 
Stems 0.75™™" in diameter ; cortical (antical) cells 54x21; leaves 
0.15"™x0.1™™; leaf-cells at middle 25yx19u, at postical margin 
24uxl5u43 mnermost bracts 0.4™™x0.35™™ ; bracts of second row 
VAT). go" > perianth 1:17™x0.4™™, 
West Maui (Baldwin), creeping over Lepidozia Sandvicensis. 
This species was found among some hepatics collected by Baldwin 
in 1875. Unfortunately only a single well developed perianth and 
two or three young flowers could be found. The younger stages 
show conclusively that the species is paroicous. C. Baldwinii 
is intermediate between Spruce’s Hucephalozia and Cephaloziella, 
with a larger number of characters in favor of the former subgenus. 
Spruce mentions only two paroicous species of Cephalozia, C. 
Jackii Limpr. and C. myriantha Lindb., of Europe, both of which 
belong to Cephaloziella, C.leucantha Spruce, of northern regions, 
is nearest to the Hawaiian species but differs in its more distant 
and more deeply bifid leaves, with narrower unequal lobes, in its 
dentate bracts, and in its dioicous inflorescence. 
