Myxophycefe, Chroococcaceae, Gomphosphseria. 97 



sociatsB, piriformes, apicibus obtusis coalescerites, apicibus liberis 

 acuminatcP, tegumento gelineo, maxime liyalino, iiiconspicuo circum- 

 fusa3, contentu liomogeneo, c«ruleo-viridi, corpore centrali saturatius 

 colorato instructa>. Multiplicatio divisione vegetativa longitudinali. 



1. Marssoniella elegans Lemmerm. loc. cit. — Ccllulis piriformibus, 248 

 o-G [X. longis, l,o-5 [i. latis, pallide ca^rulco-viridibus, 4-16 in 

 familias conjunctis. 



Hah. in lacu «Suuunt-See» dicto, Germanite (M. Marsson). 



GOMPHOSPH/ERIA Ivuetz. [1836J Alg. Dec. XVI, n. 151 (Etym. gom- 

 phos clavus et sphaira spiicera), Rab. Fl. Eur. Alg. II, p. 55, 

 Kuetz. Sp. Alg. p. 233, Hansg. Prodr. II, p. 143, Kirchn. in E. 

 et P. Nat. Pf. p. 56. — CellukB cuneatfe vel cordatie, raro sub- 

 globos*, periplierice ordinatie, tegumento achroo vel llavescente, 

 plerumque crasso, facile diffluenti circumdatse, 2-4-8 et ultra in 

 familias subspha^ricas radiatim dispositse, contentu cajruleo-vire- 

 scenti saepe valde granoso, stratum globosum solidum, libere na- 

 tantem constituentes. Cellularum divisio in directionem ad tres 

 dimensiones alternantein. 



1. Gomphosphaeria aponina Kuetz. Alg. exs. n. 151, Tab. Phyc. I, 249 

 p. 22, t. 31, f. III, Sp. Alg. p. 233, Rab. Fl. Eur. II, p. 56 et p. 5, 

 f. 10, Kirch. Alg. Schles. p. 255, Cooke Brit. Freshw. Alg. p. 214, 

 t. LXXXVII, f. 2, Lagerh. in W. N. et L. n. 1548! Schmidle in Ber. 

 d. Deutsch. Bot. Ges. 1901, p. 16, t. I, Gomphosphceria aponina 

 var. genuina Hansg. Prodr. II, p. 143, Sphwrastricni caneatam 

 Kuetz. in Menegh. Syn. Desm. p. 238, Bleisch in Rabenh. Alg. exs. 

 n. 1497! et Reinsch in Rab. loc. cit. n. 1911. — Strato micro- 

 scopico, a^rugineo, sa^pe expallescente ; tegumentis achromaticis, 

 subcrassis, saepe sublamellosis; cellulis clavatis, 4-5 a. crassis, usque 

 ad 10 (j.. longis, pedicellatis, dichotomice divisis, 4-32 vel etiam 

 pluribus in familias globosas vel subglobosas 50-65 (i. (raro nsque 

 ad 90 [)..) latas, saltem centro concavas consociatis; protoplasmate 

 terugineo-viridi vel pallide ca^ruleo-viridi, pedicellis brevibus centro 

 coalitis. 



Hab. \n stagnis per Europam passini, e. gr. ad Strehlen Silesite 

 (Bleisch), prope Dresdam (Hantzsch), ad Stutgardiam (Zeller, 

 Kirchner), in lacubus et turfosis Holsatine (Apstein, Lemmer- 

 mann), nec non in paludibus subsalsis Germani» septentrionalis 



