Fig. 46. H. micronesica, showing small holdfast, and much enlarged basal segment 

 which is somewhat contorted and bears many branches. In the specimen shown 

 the nodal medullary filaments of a segment near the base (bottom photograph) 

 have remained micorticated, forming a rope-like strand which termmates in a 

 young plant. This is an example of asexual reproduction by runners which are 

 above the substrate. Specimen from vicinity of South Pagi Island, west of Sumatra, 

 2 XII 6.3, Hillis-Colinvaux LH 27a, b, c. Scale bars are 2 cm. (Photographs by The 

 Ohio State University Department of Photography.) 



