62 ART. 12. — K. YÈNi)0. 



SCHIZOPHYCUS J. Ag. 



Srrrf/asstini pinnatifldttm Harv. mut. str. 



Plate VII. Fig. 1-3. 



Charact. of New Alg. p. 327.— ? J. Ag.: Aual. Alg. Cout. III. p. 50. 

 Diagnosis (emend.). Caiile tereli sursum compressa, distiche piunatim 

 ramosis, ramis e margiue egredientibus; foliis iuferioribus a^jproxiraatis, 

 anguste linearibus, laciniis linearibus simplicibus vel piunatifido-dicho- 

 tomis, iutegris, costatis, superioribus linearibus, laciniis lineari-lanceolatis, 

 argute serratis subsingula utrinque série glandulosis; vesiculis ellipsoideis 

 folio sîepe bipartito serrato coronatis; receptaculis. 



Description of the species. There are three specimens of the 

 present species whicli were collected by Dr. K. Miyake and 

 are kept in the herbarium of the Science College of the Tokyo 

 Imperial University. None of them have the basal part of the 

 frond and they are all sterile. In the spring of 1904, I found 

 several specimens at Misaki ; and in the next year, I received a 

 specimen of the same species for determination from the Hiro- 

 shima Higher Normal School. Unfortunately these were equally 

 sterile and lacked the basal portions. 



As far as the material shows, the axial stem is complauated 

 with rounded edges and has short lateral branches from its 

 margins. In some specimens a short spinous process was found 

 at the edge of each internode in the lower portions. The lateral 

 branches are disposed distichously pinnately with the internodal 

 distance rarely exceeding one centimeter. The lower ones have 

 the leaves on them very approximate and when they drop off, the 

 scars give the stem a very rugose and prickly appearance. The 

 leaves on these branches are narrow and linear, measuring 1-2 mm. 

 in breadth and are subdichotomously ^furcated, or often simple. 

 An immersed midrib traverses almost the entire length of the 



