32 CARL SKOTTSBERG, MARINE ALQJE 2. RHODOPHYCEiE. 



Microrhinus is more closely related to Pantoneura than to any other genus. It 

 differs considerably in the outline of the frond, in the clustered fertile leaflets etc. 

 Distribution: S. Georgia. 



Pantoneura Kylin 



P. plocamioides Kylin in K. & Skottsb. p. 47, fig. 23 — 24. 



South Georgia: Cumberland Bay, Boiler Harbour, sublit. 5 m (St. 48, 

 20. 4.09, $, ©). 



Distribution: S. Georgia. 



Pseudophycodrys nov. gen. 



Fröns fere ut in Phycodryde, foliacea, costata, e margine et stipite adulto ra- 

 mosa. Cystocarpia per frondem sparsa, structura ordinis. Tetrasporangia praecipue 

 versus marginem laciniarum utraque pagina soros parvos numerosus formantia, trian- 

 gule divisa. Crescentia apicalis primo, ut videtur, illae Delesseriae conformis, dein cellu- 

 lae filamenti centralis transverse divisae, structura Phycodrydis vel potius Nitophylli. 

 Fröns adultior costata et transverse nervösa; cellulae medullares costae elongatae, re- 

 ticulo filorum angustissimorum (hyphis) cinctae; lamina plerumque corticata, tristra- 

 tosa. 



Genus incertae sedis, ut infra melius exposui. 



P. phyllopliora (J. Ag.) Skottsb. — Fig. 13 — 14. 



Syn. Delesseria phyllophora J. Ag. Sp. Alg. III p. 486, III: 3 p. 161; D. Davisii, 

 Kylin & Skottsb. p. 39 fig. 19 non Hook. Fil. et Harv. 



Phyc. quercifoliae similis et facile cum illa commixta, sed structura anatomica 

 nec non crescentia apicalis diversa. Specimina adulta sat magna, ad dm vel ultra longa. 

 Lamina inciso-lobata et laciniata, irregulariter denticulata, crasse costata et opposite 

 vel alterne nervösa nervis plerumque furcatis, stipitata nec non e stipite prolifera. Cy- 

 stocarpia in nervis vel inter illos sparsa, valde conica, orificio incrassato. 



South Patagonia: Fitzroy Channel, sublit. 13 — 14 m, gravel (St. 17, 

 18. 4. 08, 9). F u e g i a : Slogget Bay, drifted (St, 47 b, 16. 3. 09, © ). F a 1 k 1 a n d 

 Islands: Westpoint Island, tide-pools, in dark corners (St. 8 a, 5. 12. 07); Sparrow 

 Cove, sublit. 11 — 13 m, shells and gravel (St. 9, 10. 1. 08). - - The following specimens 

 mentioned by the writer 1. c. must be referred here: Falkland Islands: Port 

 William, 40 m, sand and stones (St. 33, 4. 7. 02, ©, s. n. D. Davisii); Port Louis, 2 m, 

 stones (St. 40, 28. 7.02, ©), 7 m, gravel (St. 41, 28.7.02) and 1 m, sand, probably 

 drifted (St. 44, 9. 8. 02), all s. n. D. quercifolia. 



Pseudophycodrys presents a remarkable likeness to Phycodrys quercifolia, and some 

 specimens also resemble D. Davisii, but the characters indicated show that from either 



