276 R. BROWN, FLORULA DISCOANA. 



82. Lecidea geographica. L. (Various vara.) Jakobshavn, 



Egedesminde, &c. 



83. L. alpicola, Schr. Jakobshavn, Egedesminde, &e. 



84. L. sulphurella, Th. Fr. ? Atanakerdluk. 



85. L. myriocarpa, DC. Jakobshavn, Egedesminde, &c. 



86. Sphcerophora coralloides, Ach. (Various vars.) Egedes- 



minde, Illartlek glacier, &c. 



87. Coniocyhe furfuracea^ L. Illartlek glacier, Claushavn. 



88. Collema meltEnum, Ach. Jakobshavn. 



89. Leptogium lacerum, Sw. Jakobshavn. 



90. Ephebe pubescenSf L. Egedesminde. 



91. Normandina viridis, Ach. Lyngemarken, 



(V.) Marine AlgcB. By Alex. Croall, Associate B.S., Stirling, 

 and Joint Author of '* The Nature-Printed British Sea- 

 weeds." 



[I did not make the collection of Algse a special object, and 

 the comparatively large number of species here recorded is due 

 more to the skill and patient industry of Mr. Croall, than to any 

 special acumen or diligence on the part of the collector. Hitherto, 

 exclusive of freshwater forms, there have been found beyond 

 60° north latitude over the whole Arctic region 63 species of 

 Marine Algae.* The well-known algologists who have examined 

 this collection have been able to detect, by critically examining 

 every scrap, 41 species of marine and 11 freshwater forms in or 

 around Disco Bay alone. — R. B.] 



MELANOSPERME^. 



1. Fucus vesiculosus, L. Ritenbenk shore, ^lih. Ectocaipus crinituSy 



&c. 30th August, v.c. Egedesminde, off Rifkol, &c. 

 Most of the specimens are rather dwarfish, some of them even 

 less than an inch in length, yet even some of these bear fruit, and 

 among them are specimens both with and without air-vesicles. 



2. Fucus nodosus, L. 



Rather more slender than usual, and the receptacles more glo- 

 bose ; but similar forms may be seen on our own shores. Floating 

 in sea out of sight of land, in Davis's Strait, off Lichtenau. June. 



3. Desmarestia aculeata^ L. 



Scarcely differing from ordinary specimens, and barren as usual. 

 Jakobshavn harbour, in 4 to 5 fathoms, muddy bottom; very 

 plentiful. 



4. Alalia Pylaii, Grev. 



Common just within low-water mark at Jakobshavn, &c. Eaten 

 by the natives. 



♦ Dickie, Journ. Linn. Soc. Botany, vol. ix. pp. 235-243- 



