142 OOCYSTIS AND EREMOSPHiERA, 



elliptica W. West, incl. f. minor AVest, = 0. Ndgelii A.Br. 

 — "O. cellulis in familias e 4-8 cellulis formantes consociatis, 

 cellulis oblongo-ellipticis, 2^-plo longius quam latius, apicibus 

 rotundatis et non-incrassatis." W. West, Alg. Eng. Lake Distr., 

 p.24. 



0. sphcerica Turner, = 0. Ndgelii var. macrospora (Turn. ) mihi. 

 — "Cellulie hyalinfe globoste, interne familias 2-8 cellularum ellip- 

 ticarum includentes. Cellulte juveniles forma irregulariter sub- 

 sphsericae. Diam. outer cell 65; inner cell long. 32, lat. 1.3/a." 

 Turner, Frw. Alg. E. Ind., 1892, p. 155, no fig. A spherical 

 mother-cell, with elliptical autospores 32 x 13/x in dimensions. 

 The latter ai-e almost certainly identical with the autospores of 

 Hydrocytium macrosporum Turner, ibid., p. 154, T. xx., f.32, 

 [ = 0. Ndgelii var. macrospora (Turn.) mihi] which measure 

 39 X 13/x. The difference in outline of the mother-cell is of no 

 consequence. 



Hydrocytium macrosporum. Turn. = 0. Ndgelii v. tnacrospora 

 (Turn.) mihi. — "H. dimensione irregularis: cellula ovata, apicibus 

 acuminata (fere ut in H. acuminatum. Braun) sed tubo parvo \e\ 

 foramine apicali instructa; sporis 2-4 magnis longe ovalibus in- 

 cludentibus." Turner, I.e., p. 154, T. xx., f.32. 



Cylindrocystis ovalis Turner = pro parte 0. oralis (Turn.) W. 

 & G. 8. West; pro parte 0. ovalis v. subtrmicata mihi. — "C. 

 mediocris, 2-2|--plo longior quam lata; cellulis ovalibus, lateribus 

 venti'icosis, apicibus rotundatis. Membrana crassa, glabra." 

 Turner, I.e., p. 16, T. i., f.5. 



0. asymmetrica W. West = 0. apicidata var. asymmet7-ica 

 (West) mihi. — "O parva; cellulis semper solitariis, asymmetrice 

 oblongo-ellipticis, 2|-plo longioribus quam latioribus, dorso valde 

 convexis, ventre leviter convexis; apicibus incrassatis et acumin- 

 atis; contentum cellularum viride granulatum." W. West, New 

 Brit. Frw. Alg., p. 14, 15, PI. ii., f.27. 



0. Marssonii Lemm. = 0. crassa Wittrock. — >SVc. W. A: (J. S. 

 West, Frw. Alg. N. Ireland, p. 68; and Chodat, Alg. vertes, p. 190. 



0. gigds var. Borgei Lemm. = (9. Ndgelii v. liorgei (Lemm.) 

 i^^ilii. — "Zellen langlich cyUndrisch, 8-14:3-5/x," Lemmermann, 



