8; 



THE BOTANIC AI, MAGAZINE. 



[Vol. XXX. No. W9. 



l<. 



mx% 



angular, with the length subequal to or twice as^ng as broad, 

 not areolated, (Text Fig. 1) ; inner cells isodiaraetric, short and 

 twice as long as broad. (Text fig. 2). Fruits unknown. 

 A distinct species in the section Ancipites J. Ag. 



Dictyota sp. 



Sterile fragments of narrow-linear, patent found. 

 Ponape (Yanagi). 



Dictyota patens ? 



Sterile frond of widely parted rather broadl}' linear frond 

 with marginal teeth and coalesced to each other by emit- 

 ting root fibres from undersurfaces. 

 Ponape (Yanagi). 



Haliseris repens Okam. n. sp. PI. I, fig. 7—18. 



Diagn. : Fronds entangled and creeping on other algae. by 

 emitting scutate root-fibres from midrib of undersurface and 

 from margin, narrow linear, ir- 

 regularly dichotomous with very 

 patent axils, proliferous from 

 margins, thin, 2 cell-la3''ers thick. 



On fronds of Gclidiopsis variabilis; 

 Triik f^riVAKE). 



A few small fragmenlal speci- 

 mens entangled on the fronds of 

 Gelidiopsis variabilis, narrow 

 linear, 1—7 cm. long, creeping 

 by emitting root fibres from 

 undersurface of the midrib and Fig. 3. Surface view of frond at the 

 from margins, irregularly dicho- portion marked 6 in the Plate 



4. -^1 / ^ 1 I, fig. lO, — . 



tomous with very patent and 



round axils, often proliferating from margins, but not from 

 surface; veins of proliferated segments are not continous at 

 the beginning with that of branches. Tips of root fibres ex- 

 panded into scutate disc, 1-3 mm. in diameter. Frond 2 cell- 

 layers thick except the midrib portion. Cells arranged in con- 

 centric rows in younger portions where simple or branched 

 hairs arc abundantly emitted from margins. 



