of the Tribe Trigonanthee. 39 
above, mouth slightly contracted, irregularly lobed, lobes denticu- 
late ; innovations lateral or postical, arising just below the second 
bracteole or from the axil of a bract: andreecium borne just below 
the female flower or intercalary on a vegetative branch; ¢ bracts 
in 3 to 10 pairs, imbricated, suberect, slightly concave, about twice 
the size of the leaves of the vegetative branches, bifid (about one- 
half), lobes broadly ovate-triangular, acute, widely spreading, sinus 
broadly lunate ; bracteoles ovate, bifid (about three-fourths), lobes 
subulate, parallel ; antheridia borne singly. 
Stems 0.08™" in diameter; leaves 0.15™™"x0.16™™" ; leaf-cells at 
margin 19uxl6y, at middle of base 204; imnermost Q_ bracts 
0.45™™x0.6™™ ; innermost bracteole 0.38™™"x0.4™™", 9 bracts of second 
row 0.45™™x0.5™™ ; bracteole of second row 0.35™™x0.3™™" ; peri- 
ANG 25> UXO 45's 6. bracts'0.257"x0.25"™. 
Kauai ; Kilohana (Cooke), growing on an exposed bank. 
This species varies greatly in almost every character pertaining to 
the male and female flowers. In rare instances the 9° inflorescence 
is borne on a short postical branch with the andrecium median 
between the ¢ bracts and the main stem. Usually the 9 inflor- 
escence is borne on a main branch or an innovation and sometimes 
as many as three or four floriferous innovations are given off in suc- 
cession. The @ bracts and bracteoles vary greatly both in size and 
form. The underleaves also vary greatly. 
C. heteroica is nearest to Cephaloziella Hebridensis Steph., from 
the New Hebrides Islands.‘ This species differs in its dioicous inflo- 
rescence, in its carinate leaves with acuminate lobes, in its smaller 
leaf-cells, and in the entire mouth of its perianth. 
1 Hedwigia, xxxii, 316, 1895. 
