Flil->ll\\ A'lT.ll A \JQJR OF Till -'I HI nUKMYs |23 



Samples 1-3 (yellow snow!), isolated. 



This sjK?ciea should probably ! transfrrn-d to the genus ScotielUt (./' pp. 109-111). 



nf iiiilivi.ltials _"_' a ; breadth = I '2 ft. 



TMTMASPOMAOMM 



7. SPH.*ROCY8TI8 3CHROETKRI, Chad., Bull. Herbver Bousier, v., 1897, p. 296, 

 pi. ix. 



Forma HIIYI/M, n. f. (text fig. 1, F-G ; PL II., phot 2, S (cf. pp. 113-115)). 



Familiae microscopicie forum puulo irrcgulariore quam in specie typica ; cellulee ante 

 divisionem reserv.mt abundaiitiam ndipis, qui invenitur in cellulis filialibus ; cellular 

 sunt saepe ellipsoideae. Diam. cell. = 7-12 M ; diam. cell. fit. = 2-3 M. 



Samples 1 and 3, especially common in the latter. 



PROTOCOCCACK&. 



8. CHLOROSPH/KRA ANTARCTICA, n. sp. (PI. I., figs. 2-6 ; PI. II., phots. 1, 3, 5, 6, C). 

 Cellule aut raagnte .spli:i-ri< -a- sinirulte aut parvae, paulum angulares, in familias 



parvas consociatto ; celluhe magna; et intenlum ccllulac par vie vagina iiiucoaa ampin 

 inuniUu ; membrana modice incrassuta, plcrumque prtebentes duo strata ; cliromatophora 

 fere sphterica cum foraminc parvo in una pnrte ; ndcps semper atle.st abundans in 

 cellulis ; puucw granuUe amylaceue plerumquc adsunt. Propugatio per divisionem ; 

 zoosporas non inveni. Diam. max. cellulao magnae = 43 n ; diam. min. cell, parviu 7 M 

 (omnes transitiones inter duas dimensioues) ; diam. cell, plerumque - 1 1 M-26 M ; diam. 

 vaginae mucosie = 39-50 M (cell, pertincntes = 26-28 M). 



Probably nearly allied to C. angulosa, Klebs. (cf. p. 104). 



Samples 1-3 (yellow snow !), very abundant. 



For full consideration, see pp. 103-104. 



9. TROCHISCIA HYSTRIX (Reinsck), Hansg., Hedwigia, 1888, p. 129; Reiiisch, 

 Uber Acanthococau, Ber. Deutsch. Bot. Ges., 1886, p. 241, tab. xi., fig. 25. 



Sample 10, rare; previously recorded from South Georgia (Reinsch). 



10. TROCHISCIA RETICULARIS (ReinscK), Harwg., Prodr. Algenftora, v. Bdhmen, il, 

 1892, p. 241. 



Sample 10, rather common. 



A small form of this species ; diam. cell. = 10 M. 



11. TROCHISCIA ANTARCTICA, n. sp. (PI. I., fig. 30). 



Cellulae sphaerica3 solitariae cum membrana crassa gelatinosa numerosis processibus 

 i-iuii-atis truncatis obtectaa et junctis reticulo costarum ; chromatophorae ? ; cellulae cum 

 cytoplasmate granuloso, semper granulas amylaceas et intenlum aliquantum adipis 

 iiK-ludente. Propagatio? Diam. cell. = 10-13 M ; crassitude membrane* 2-3 M. 



