﻿5-6 mm. in broader portions. They are gradually narrowed 

 towards their bases, patent and terminate in acute or bifid apices. 

 Joints are not constricted in greater part of frond, especially in 

 younger portions, but slightly constricted in lower and broader 

 parts. The length between joints is one-third or one-fourth as 

 broad. 



Frond is tubular, separated into small compartments by 

 thin, cellular, one-cell-layer thick diaphragms at joints. The wall 

 of the tube is 出 in, internally consisting of a layer of larger 

 roundish cells whose interstices are occupied externally by smaller 

 cortical cells. Through the tube, there run longitudinally many, 

 s】em:er， colorless, simple or branched, articulated filaments which 

 arise from the cells lininp- the wall of the lube and pass through 

 diaphragms. These filaments or hyphae are laterally provided 

 with a small globular cells what are known as u bulb-cells. The 

 filaments converge at extremities towards the apical points of 

 frond. 



Tetraspora n gia are densely collected over the surface between 

 joints of the middle or lower portion of a branch, without any 

 difinite order, bulging in towards the interior of frond. Cysto- 

 carps are scattered around branches, sessile and urceolato-ovoid, 

 and are furnished with prominent carpostome. The inner layer 

 of pericarp is consisted of a beautiful network of slender fila- 

 ments which arise from the tissue forminp* the bottom of the 

 spore-cavity. Gonimolobes form a globular mass with densely 

 paci<ed spore-filaments paniculately branching from a large pedicel- 

 cell, making spores to ripe in the terminal articulations and are 

 covered by hyaline gelatinous envelope. 



Colour orange-red fading to yellowish-oranp-e in prolonged 

 immersion in fresh water. Substance gelatinoso-membranaceous 

 and the plant firmly adheres to paper in drying. 



