479 



my plant upon the whole showing so much likeness to a Polysi- 

 phonia. Now, of course, it has found its right place among the 

 Delesseriaceae. Its way of forming the cortex, the development 

 of which I was not able to find out from my material, but which 

 is easily seen in HOWE'S plant, exactly shows its relation to this 

 family. 



152. Taenioina perpusilluin J. Ag. 



153. Caloglossa Leprieurii (Mont.) J. Ag. 



154. Delesseria tenuifolia Harv. 



155. Martensia Pavonia J. Ag. 



156. Asparagopsis taxiformis (Delile) Coll. et Herv. 

 CONOLLY has in "Flora", Bd. 103, 1911, Heft 2, given a 



description of the Australian species Asparagopsis armata which 

 ought to be compared with that of Asparagopsis taxiformis given 

 above. 



157. Gigartina acicularis (Wulf.) Lamx. 



Hypneocolax nov. gen. 



Thallus parasiticus, minutus, subhemispha^ricus, processibus 

 brevibus undique projectis, verrucaeformis aut semistellarise- 

 formis parte basali nutrici adfixus et cum hospite arete coales- 

 cens. Structura parenchymatica, cellulis plus minus seriatis radia- 

 tim flabellatis; interiores majores, exteriores minores corticemque 

 formant. Sporangia in cellulis externis formata in duas sporas di- 

 visa. Antheridia in summo filorum breviorum creata, dense congesta 

 totam fere superficiem plantse occupantia. Cystocarpia sparsa 

 in singulis plantis pluria in processibus formata, semiglobosa 

 poro terminali non instructa. 



158. Hypneocolax stellaris nov. spec. 



Thallus ca. 3 / 4 mm latus. Guticula crassa, -20 25 fj. lata. 

 Sporangia in cortice formata in duas sporas divisa, long. 30 , ; 

 lat. 16 22 . Cystocarpia globosa pluria in eadem planta prae- 

 sentia, carposporas numerosas continentia; latitude eorum 20 22/jt. 



Upon a specimen of Hypnea musciformis some small wart- 

 like or sometimes more stellate bodies were found (Fig. 433), 



