■m ^ 



24 MISS B. M. BRISTOL ON 



Var. t^ermatocolax (Reinko), nol). 



C. dermal ocolax^ lieuiko in ' Al^^enflora Jer westllclio Oi^tsee deutr^chc 

 Antheils, vi,/ Bor. (Joiiimi&ti. Untersuch. deutscluni Mcere [Kiel, 1881)) ; 

 Koseiuinnje, '' Le8 Aloues marines du Grocnlaiul/' Ann. Sci. Nat.^ Bot. 7'''^ 



grr, xix. (1894) p. 1G8. 



Cells soiuowhat flatteneJ, length 20-30 /z. breadtli 15-20 jx or a little larger. 

 Cldoroplast forming a continuous parietal [date Avitli ridges projecting 

 towards inside of cell. Zoogonidia 4-t) yu. long, with posterior, concavo 

 chloroplast and brown pignieut-spot. jMutile zoogonidia bore their way into 



tlu; Lost-plant. 



llah. In superficial cell-w^alls of Polf/siphoiiia elongata and SjJiacelaria 



raceuioaa. 



VIIL C. Sakcophygi (Whitting), G. S, AVest in 'Algits' Camb. Bot. 

 Handbooks, i. p. 212, 191G. 



Cldorocfjstis Sarcophfjci^ Whitting in G. Murra}^ l*hyc. Mem. Part ii. p, 41, 



181)3. 



Colls thin-walled, 10-40 ^i in diameter, irregular in shape. Spores pro- 

 duced by free cell-formation; in other cases the protoplasm is segmented 

 into larger irregular portions, the signiticanco of which was not determined. 

 The endophyte has a destruclive action on the host, causing at first a swelling 

 and loosening of the tissues, and finally the complete disintegration of the 

 cells with the consequent forination of holes in the thallus. 



llal^. In I'rouds of Sarcophjcus on shores of New^ Holland, 



IX* C. CoHNii, E. P. Wrightj " On a new spt^.cies of parasitic green Alga 

 belonging to the genus Chi orach tjtrhou of Colin/' Trans. Poy, Irish Acad, xxvi, 

 (1879) p. 355; Lagerlieim, " Om Chlorochytrlnm Cohnii, Wright,'' Ofversigt 

 af Kongl. Veten^kaps-Akad. Fiirhandl. 1884, no. 7. 



Chlorocyslls Cohiii (E. P. Wright), Reinhardt, ' Contributiones ad morpho- 

 lo^nam et systematicam algarum Maris Nigri' (Odessa, 1855) ; De Toni, 

 Cousp, gen. Chloroph. in Notarisia, iii, p. 451 ; Wille^ Naturlichen Pflanzen- 



familien, i. Abt 2, p. GQ^ 1897. 



Cidorochjtrinm Reinhardln^ N. L. Gardner, '' New^ Pacific Coast Marine 

 Algre, I.," Univ. Calif. PubL in JJot, vol. vi. no. 14^ pp. 381-i582, June 1917. 



Cells globose, ellipsoid, or slightly irregular, about 40 /t in dianicterj 

 embedded in the liost^ with a small ni|)})le-shaped projection on the surface of 

 the host. Chronuitojihore forming a more or less irregular parietal plate of 

 variable extent containing a single conspicuous pyrenoid. Propagation by 

 oval zoogonidia formed usually by succeh^sive bipai-tition of the contents of 

 the mother-cell, biciiiate with a posterior chloroplast^ a single pyrenoid^ 

 and a pigment-spot ; they are extruded separately through the short neck 

 of the cell, and fuse to form quadriciliate zygotes which in penetrating 



V 



