142 KJELLMAN, THE ALGvE OF THE AKCTIC SEA. 



Gen. Cruora (Fk.) J. G. Ag. 



Sp. Alg-. 2, p. 490; Fk. Pl. Scan. p. 316; lim. raul. 



C nior i a pellita (Lyngb.) Fr. 



1. c. p. 317. Cluetopliora pellita Lyngb. Ilydr. Dan. p. 193. 

 Desvr. Oruoria pellita J. G. Ag. 1. c. p. 491. 

 Fig. » » Tiiuii. in Le Jol. Liste Älg. Cherb. t. 4. 



Exsicu. » » AiiEscii. Alg. Seand. exsioc. N:o 309. 



Habitat. The present species, like the precedinjj,- one, is a litoral alga, at least in 

 tlie Norwegian Polar Sea, attached to stones. Only sterile specimens have been met 

 with. These were collected in summer. The plant probably liere, as on the west coast 

 of Sweden, develops its reproductive organs in winter. About the habitat of the plant 

 in Baffin Bay I know nothing. 



Geogr. Distrib. It belongs both to the Atlantic and the arctic region of the Polar 

 Sea, being only little spread in both. It cannot be determined, by means of existing 

 stateraents, how far it goes northwards. 



Localities: The Norwegian Polar Sea: Nordlanden, cominonly dispersed, but scanty. 



Bafjin Bay: on the west coast of Greenland, according to specimens in the Royal 

 Swedish Museum, brought home by Prof. Th. M. Fkies. 



Gen. Hgemescliaria nob. 



Frondes (lepresso-lieiuisplu\;rie;e in crustani nuicosam contluentes, dnobus slratis coutextaj, iuferiore tenui 

 filis deeunibentibus, supcrioru lilis verticalibus raueo uberiore laxius eonjuuctis constaute. Fila verticalia triplicis 

 generis: l:o longiora et tenuiora vegetativa, '2:o lougiora et teiiuiura tricliogynas vulgo plures portantia, 3:o 

 breviora et crassiora partes delinitas iVondis formaiitia, quornm artioulij foecundatione peracta, siugiili sporam 

 singulam generant. 



Haiiuescharia polygyna nob. 

 II. froudibiis rainutis, purpureo-sanguineis. 

 Tab. 11. 



Descrijjtion. The plant forms small, tlattened-hemispherical, gelatinous masses, 

 which are confluent so as to constitute a crust of about oue centimeter in diameter. It 

 consists of a horizoutal, feebly developed basal laycr composed of cellulär filaments 

 connected with one another by a gelatinous substancc, and of a thickening layer, that 

 issues from this basal layer and consists of vertical rows of cells held together by a 

 profusion of gelatine and easily separated in pressi:ig. These rows are generally simple 

 and vary in different parts of the frond, being sometimes comparatively long (about 

 250 ,".) and slender (6- — 8 ,«.), composed of uumerous, 15 — 20, cylindrical cells, which 

 are even twice as long as thick. I believe these cell-ro ws to be vegetative; fig. 1, 3. 

 In other parts of the frond several of the vertical cell-rows exhibit the appearance 

 shown by lig. 7 and 8, i. e. from the terminal cell or the articular cells there issues 



