Myxophycese, Scytonemaceae, Scytonema. 607 



exs. n. 13191 Symphyosiphon Javanicus Kuetz. Sp. Alg. p. 323, 

 1849, Tab. Phyc. II, p. 13, t. 43, f. l, Scytonema vinosmn Mont. 

 Crypt. Guyan. iii Ann. des Sc. Nat. III serie, I?ot., XVI, p. 81, 1851, 

 Huitieme centur. des pl. cellul. nouv. in Ann. des Sc. Nat. IV 

 ser., Bot., VI, p. 185, l8o6, Scytonema Hofmanni suhsp. h Java- 

 nicum Hansgirg Prodr. II, p. 34. — Strato pulvinato, 2-4 mm. 

 alto, saturate a:!rugineo vel rubescente; fllis 12-15 {i. crassis, in 

 fasciculos verticales coalitis; pseudo-ramis longis, flexuosis, aggre- 

 gatis; vaginis firmis, tenuibus, hyalinis, demum luteolis; tricho- 

 matibus 9-12 [j.. crassis, viridi-fuscescentibus aut violaceis; arti- 

 culis compressis aut quadratis ; heterocystis subquadratis. 



Hab. ad terram, muscos, folia et lignum in iEquatoria (La- 

 gerheim), Guyana (Leprieur), in ditione « Massachussetts » et passim 

 Amer. bor. (Setchell), in Jamaica (Collinsj, ins. Dominica (West), 

 Brasilia apud Bahiam (Salzman), dit. Paraguayensi (Balansa), 

 Kamerunia (Dusen, Nordstedt), Ceylona (Ferguson), Tahiti (Sava- 

 tier), Java (Zollinger, Benecke, Massart, J. Moeller, Penzig), 

 Nova Caledonia (Marie), ad «Victoria Gard. » pr. «Bombay» Indiae 

 (Hansgirg) et Koh-Chang (J. Schmidt), nec non in tepidariis Galli* 

 (Hy), Austriae et Bohemise (Hansgirg). = Var. hawaiiense Lem- 

 merm. Algenfl. d. Sandwichinseln p. 624, t. VIII, f. 6-8: strato 

 pulvinato, saturate ^rugineo; filis 9,5-11 [j.. crassis, in fasciculos 

 verticaliter coalitis; vagina firma, tenui, semper hyalina; cellulis 

 cyfindricis, interdum quadratis, 5,5-8 {j.. latis, 5,5-14 \h. longis; cel- 

 lufis junioribus compressis; contentu cellularum homogeneo, l^ete 

 serugineo; cellufis ramorum juniorum vacuofis aerogenis repletis; 

 heterocystis plerumque cylindricis, rarius subquadratis, interdum 

 luteolis, 7-9,5 [i. latis, 9,5-14 [x. longis. — Hawaii ad Kilauea in 

 Muscis (Schauinsland). Differt a typo filamentis tenuioribus, cel- 

 lufis cyfindricis, contentu terugineo et heterocystis cyfindricis. 



20. Scytonema papuasicum Borzi x^lghe della Papuasia in N. Notarisia 1189 

 1892, p. 42. — Strato inininio, pulviniformi, saturate serugineo; 



filis gracifibus, 9-10 [x. crassis, pseudo-ramulis geminis, omnino 

 distinctis ; vaginis firnfis, tenuibus, superficie exteriori granulis 

 calcareis dense obsitis, corrugato-exasperatis; cellufis quadratis, ad 

 7 [t. latis, heterocystis simifibus. 



Hab. in calvis capitum huinanis exhumatis Papuasia? (Loria). 



21. Scytonema dubium De Wildem. Alg. rapp. p. J. Massart in Ann. 1190 

 de Buitenz. 1897, suppl. I, p. 43, t. XX, f. 7-10, Alg. de la Fl. 



de Buitenz. p. 19, t. XIII, f 7-10 nec Wood. — Filamentis in 



