54 NOTES ON AUSTRALIAN MARlNK ALGiE, L, 



entire, segments broad linear, obtuse, to 25 mm. wide. Numerous 

 very fine veins running out from the midrib obliquely toward the 

 margins, easily detected by the naked eye. Paranemata not 

 seen. 



Lefebre Peninsula(Sonder), "Port Denison &c. Australia " 

 (Kilner, F. v. Mueller). Needs elucidation. 



H. plagiogramma Mont., Cent. i. Fig., Kuetz., Tab. Phyc. ix., 

 t.57. — Sori forming a subcontinuous spot along each side of the 

 midrib. Axils rather acute, margins entire. Numerous fine 

 veins running out from the midrib obliquely to the margins, about 

 1 mm. apart. Paranemata not recorded. Frond small, scarcely 

 12-14 cm. long. 



Atlantic, Sandwich Islands. — Australia(Zanardini). 



Spermatochnus Kuetz. 

 (Plate i.) 



S. lejolisii(Thm\) De Toni. — This graceful and delicate alga 

 was a sore puzzle, as it seems to be without fruit, and no fucoid 

 of our Australian list seemed to even approach it. I accordingly 

 forwarded a specimen to Mrs. E. S. Gepp of the British Museum, 

 who has most kindly helped me out of other difficulties. She 

 wrote "A new record for Australia! Dr. Kuckuck, the authority 

 on this group, is now working here, and he named it, so there is 

 no doubt about it. He is making a new genus on S. lejolisii, 

 and has studied the European specimens of it." 



Shores of France(l.e Jolis) and England(Holmes). I found it 

 growing on fronds of a Dicti/ota, on a shelf of rock made acces- 

 sible at low water, on an island in the inner harbour of Port 

 Stephens. 



Myriocladia J. Ag. 

 M. sciurus Harv. — Mr. L. Rodway sent me this alga, gathered 

 by him at Pv-etreat, on the Derwent River, Tasmania. It had 

 previously only been found in Victoria (Port Fairy), and New 

 South Wales (Newcastle). Harvey did not secure fruiting speci- 

 mens. The Tasmanian specimens were in full fruit, the sporangia 

 being characteristic of the genus as defined by J. Agardh. 



