﻿82 Allen: Contributions to Japanese Characeae 



in diameter. The mucro 30 in diameter. The mucro 30 in diam- 

 eter, by 54 long. The obgonia are isolated on the second node only. 

 Antheridia not seen (plants mature and very fertile) ; oospores 



2 75-3°° l° n g by 2 40 broad with 7-8 blunt ridges : membrane of 

 the spore evenly granular (about 3 granules in 5 it) . 



This form, it seems, cannot be separated specifically, though it 

 is an apparent transitory form to N. transilis Allen. Like the latter 

 species the leaves are sometimes only 3-divided, and it more re- 

 sembles N. transilis in its fresh, bright green color with close, erect 

 verticils than extreme forms of the type, with a flexuous pros- 

 trate habit, of a dull yellowish or brownish green color, with 

 spreading verticils ; but the character of the spores, the- numerous 

 transition forms and its locality connect it with N. multipartita. 



The plants were collected in the same locality as the / in- 



termedia. 



A 



This form differs from the type in its more erect habit with 

 less spreading verticils, fewer nodes on the leaves (4 or very 



rarely, 5) ; the plants are more slender though more erect, the 

 diameters being as follows: First segment 306, second 140, third 



fourth 61, fifth 



The oospores are of 



the same size with the same character of ridges and sculpturings 

 on their membranes. 



Collected in Kyoto, Japan. 



Note.— A number of etchings are being made to distribute 



& ~ "*~ "-"'"£ 



with the separately printed copies; -these will be sent cheerfully 

 to all who may be specially interested in Characeae. T. F. Allen, 

 3 East 48th Street, New York City. 



