13 



Hitherto known from : Cape of Good Hope ; New Holland ; 

 Warmer part of the Pacific Ocean. 

 Remarks: Onr specimens are a few centimetres high, compressed 

 and with snbopposite branches. 



Chylocladia (Grev.) Thar. 

 Chylocladia sp. indetermin. 



Remarks: A very imperfect specimen, difficult to identify. 

 Delesseriaceae. 

 Caloglossa (ffarv.) J. Ag. 

 Caloglossa Ogasawaraensis Ottam. mscr. 



C. Ogasawaraensis— Fronds violaceous, pulvinate, ca;spitose, repent, thinly mid-ribed, with 

 narrow, linear-lanceolate, leafy segments, attenuated towards both ends, not stipitate, un- 

 equally dichotomous, snbarticulatedly constricted, rooting and proliferating new similar 

 leaves from constricted parts, also proliferating laterally from both sides of basal portion of 



Hah. Ogasawara-jima (Bonin Islands) ; collected by Mr. R. Yatabe 

 and preserved in the Herbarium of the Imperial University of Tokyo. 



Segments are very narrow, linear-lanceolate, 500-900 /jl broad, 3-5 

 mm long, almost even or slightly undulated at margin, twisted, gradually 

 attenuating towards both ends, more narrowly towards the base, and 

 not petiolated, more or less provided with the continuation of the wing 

 (Fig. B). The mode of ramification is dichotomous ; but two arms of 

 the dichotomy are not equal in length and size, one being always 

 shorter and narrower than the other (Fig. C) ; often one arm is entirely 

 suppressed. Proliferations from the mid-rib are observed neither in the 

 membranous nor in the constricted parts. In the constricted parts, new 

 leaves similar in shape to the segments are proliferated from both sides, 

 and also from both margins of the basal portion of segments ; they rise 

 near to each other on one side and even as many as 3 are proliferated 

 along one side. Proliferated leaves again proliferate other ones from 

 similar places. Thus the segments seem to the naked eye to arise 

 fasciculately from the constriction. The proliferated leaves are not at 

 first united to the main segments by a distinct continuation of the 

 mid-rib, as in the continuation of the main segments ; but a little 

 afterwards some of the cells of the membranous portion of segments 

 become a little larger and longer than other cells and they form the 



