Myxophyceae, Stigonemacege, Stigonema. 58? 



Hab. in Brasilia (Glazioxt). 



11. Stigonema irregulare De Wild. Alg, rapp. p. J. Massart in Ann. 1310 

 de Buitenz. (1897), Suppl. I, pag. 48, t. XXIII, f. 1-8, Algues de 

 Buitenz. (1900) p. 17, t. XVI, fig. 1-8, Stigonema informe var. 

 irregulare De Wild. Schniidle in Sinimer' s IV. Ber. iib. Krypto- 

 gani. Fl. V. Karnt. p. 5. — Tliallo stratum pulvereum brunneum 

 formante, e ramulis irregularibus et irregulariter ramosis 35-40 



{X. diam. constituto; cellulis irregulariter aggregatis, in massa ge- 

 linea fundamentali nidulantibus, violaceis vel brunneis vel vire- 

 scentibus, 7 [j-. circ. diam.; heterocystis numerosis, in thallo disper- 

 sis, leviter coloratis vel incoloribus, 7-9 {a. diam., saepe binis con- 

 tiguis; membrana thalli saepe irregulari squamosa; hormogoniis in 

 ramulis curtis in peripheria thalli dispersis efformatis. 



Hab. in trunco arboris horti botanici prope « Buitenzorg » Javse 

 (Massart) et in Carinthia (Simmer). 



12. Stigonema mamillosum (Lyngbye) Agardh Syst. Alg. p. 42 (1824), 1341 

 Harv. in Hook. Brit. ¥\. II, p. 363, Man. of the Brit. Alg. p. 153, 

 Hass. Brit. freshw. Alg. p. 228, t. 66, f. 2-3, Kirchn. Algenfl. v. 

 Schles. p. 229, p. p., Cooke Brit. Freshw. p. 272, t. CXI, f. 7, 

 Thur. Essai 380, B. et Flah. Rev. III, pag. 77, Hold. in Phyc. 

 Bor. Amer. n. 356! Bangia mamillosa Lyngb. Hydrophyt. Dan. 

 pag. 85, t. 25, f. C, 1819, Stigonema mammiferum Thwait. in 

 Kutzing Tab. phyc. II, pag. 11, tab. 38, fig. IV (1850). — Strato 

 pulvinato, lanoso, usque ad 12 millimetra alto; filis erectis, in- 

 tricatis, rigidis, a basi ramosissimis, usque ad 65 jx. crassis; ra- 



mis 40-50 [x. crassis, utrinque longe attenuatis, patenti -erectis, 

 crebre ramellosis; ramellis aliis hormogoniiferis mamillasformibus, 

 brevibus, patentissimis, diam. rami brevioribus, 24 \u crassis, sub- 

 verticillatis; vagina crassa, luteo-fusca, lamellosa, saepe torulosa; 

 cellulis olivaceis, citissime divisis, in quoque articulo numerosis ; 

 hormogoniis brevibus, 45-50 « 15 ^l. ; heterocystis collateralibus. 



Hah. ad rupes irroratas uut submersas in rivulis 3ueciae (C. 

 Ag., Noedstedt), Norvegice (Lyngbye, C. Rosenberg), Fennise (Elf- 

 ving), Hibernise (West), Germanise (Brand), ins. Faeroensium 

 I^Bgergesen), Britanniae (Harvey, Thwaites, West), ItaliaB (Forti), 

 Americae foederatae (Wood, Farlow, Holden), « Singapore » pte- 

 nins. Malaccie (Beccahi), « Koh Chang » (J. Schmidt). — Ohs. Huc, 

 sententia cl. Borneti, Flahaulti et Hieronymusi pertinent etiam 

 Sirosiphon major Briigg., Stigonema solidum Kuetz., Stigonema 



