1.S78.] G. ZeWcv— On Burmese Algce, Sfc. 179 



Gujanensi affine, sed multo tenuius. Genus accuratius observandum). 

 Arracan, Akyab, in rupibus maritimis inundatis (3280). 



*29. Symploca KrEZiANA, Z., n. sp. 



Lignicola, poUicaris et ultra, griseo-seruginea, fasciculis strictis, densis, 

 basi coalitis : fills rectis, pallide serngineis, subtiliter granulatis, continuis 

 vix hinc inde obsolete articulatis, cum vagina 1/375 lin. crassis ; vaginis 

 achromaticis, arctis, superne saepe vacuis. Pegu, in fundo naviculse fluminis 

 Mjitnan ad Thabysegon (3222). 



*30. Symploca ltjtescens, Z., n. sp. 



Lignicola, semipollicaris, vix ultra, fasciculis basi viridi-aerugineis 

 apicem versus lutescentibus, dense csespitosis ; fills pallide aerugineis, apice 

 evaginatis, granulatis, sine vagina 1/450 — 1/300 lin. crassis ; articulis 

 obsoletis ; vaginis rigidis, achromaticis, ad 1/175 lin. crassis. Pegu, in 

 planitie alluviali fluminis Irrawaddi, in fundo naviculse, qua fluvium Lhein 

 prope Beendau-Hseat transiit cl. Kurz (3160). 



NOSTOCHi:^. 



*31. NosTOC ELLiPSOSPOErM, Rabenh. (^Hormosiphon, Desmaz.) var. 

 vaginis achromaticis. 



Prome, in montibus Yomse, inter muscos secus declivia rivuli Whay- 

 dho (3178). 



*32. NosTOC GEAIOJLAEE, Rabenh. {Hormosiphon, Kg.). 

 Pegu, Elephant-point, in aquis dulcibus stagnantibus (3291). 



*33. NosTOC PUEPIJEASCENS, Kg. (iV. rufescens, Ag., forma purpur- 

 ascens). Pegu, Kadeng-choung ad Natmadhee, natans (3230). 



*34. NoSTOC EIYTJLAEE, Kg. 



Pegu in montibus Yomse, Koon-choung ad saxa arenosa humida (3176). 



*35. NoSTOC HETEEOTHEIX, Z., n. sp. 



Strato irregulariter expanso, olivaceo-viridi ; fills leviter flexuosis, 

 insequalibus ; alteris aerugineis, articulis globosis, 1/600 — 1/450 lin. crassis, 

 cytiodermate vix conspicuo hyalino ; alteris fuscis, cytiodermate evidenti, 

 colorato, articulis globosis v. ellipticis, ad 1/175 lin. crassis ; cellulis 

 perdurantibus ellipticis, ceteris paulo majoribus. (Forsan Hormosiphon 

 Jieterothrix, Kg. ?) Pegu, in valli Pazwoondoung, in rivulo Bala-choung 

 (3196) ; secus declivia limosa fluminis Irrawaddi ad Khyoung-gyee (3163). 



*36. NosTOC Ktjezianum, Z., n. sp. 



Terrestre, thallo fusco-atro, irregulariter expanso, membranaceo ; fills 

 densis, parum curvatis, fulvis ; articulis 1/600 — 1/500 lin. crassis, sphsericis, 



