Algae — Eumycetes. 9 



cum a northern, C. longipes is found together with C. arcticmn, but 

 also in mixed territories. 



As to the distribution of or-ganisms round Iceland it is shown 

 that a series of species is common for the south- and west coast, 

 both being washed by atlantic water, and that also the north and 

 east coast have many species in common, which are bound to arctic 

 water, Many species are living at all coasts. 



The different oceanic plankton-communities round Iceland 

 are described. On a large submarine bank S W of the Faeroes the 

 water was colder and fresher and the plankton richer and more 

 neritic than on the deep sea. On the bank the diatom flora seems 

 to last, all through the summer, the water appearing to be but 

 slowly renewed. 



In a PostScript the author mentions the ''mutations of Ceratiiim''\ 

 described by Kofoid, declaring himself not to be convinced that 

 these are really mutations. Ove Paulsen. 



Yendo, K., On the Mucilage glands of Undaria. (Ann. of Bot. 

 XXIII. p. 613— 621. ill. 1909.) 



Undaria, one of the Lauiinaviaceae , has numerous glandulär 

 cells scattered in the lamina. As a rule each glandulär cell originätes 

 from a Single cortical cell which is in contact with the epidermal 

 layer. The epidermal cell upon a glandulär cell degenerates as the 

 latter develops, leaving a mem_branous coating over the gland. The 

 function of the gland is possibl}^ to secrete a mucilagenous substance, 

 The glands found in the lamina of Hivome and Undariopsis will 

 probably prove to be similar to those of Undaria, in their mode of 

 development and tiinction. Agnes Arber (Cambridge). 



Fries, Th., Skandinaviens tryfflar och try ffelliknande 

 svampar. [The Truf fies and Truffle-like fungi of Scan- 

 dinavia.] (Svensk botanisk Tidskrift. 1909. p. 223—300.) 



A most thorough description of all Fungi hypogaei, found in 

 Sweden (S), Den mark (D), Norway (N) and Finland (F), and 

 a criticism of all former reports ofdiscoveries of fungi in Scandina- 

 via. The author has examined all the material, found in the botanical 

 museums of the said countries. Altogether 29 species are mentioned, 

 viz: Tuber aestivuni Vitt. (D.), T. rufum Pic. (D.), T. ntaculatuni 

 Vitt. (S, D), Pachyphlaeus ineloxanthus (Berk.) Tul. (D), Chaeroniy- 

 ces venosus (Fries) Th. Fr. (S, D, N), Hydnotria Tulasnei Berk. & 

 Br. (S, D, N, F), H. carnea (Cda) Zobel (S, F), Balsaniia platyspora 

 Berk (S), Amylocarpus encephaloides Curr. (D), Elaphomyces granu- 

 latus (A. & F.) Fries (S, D, N, F), E. muricatus Fries (S, D, F), 

 E. aculeatus Vitt. (D), Cenococcus geophüus Fries (S, D, N, F) Gau- 

 tieria graveolens Vitt. (S), G. reiirugosa spec. nov. (S), Octaviana 

 asterospora Vitt. (D), Hydnatigiuni carneuni Wallr. (S), Hymeno- 

 gasier Klotsschii Tul. (S), H. citrinus Vitt. (S), H. vulgaris Tul. (S, 

 D, F), H. calosporus Tul. (S), Hysterangium clathroides Vitt. (S, N, F), 

 H. stoloniferum Tul. (D), Rhisopogon roseoltts (Cda) Th. Fries (S, 

 N, F) & form: aherrans f. nov. (S), Rh. provincialis Tul. (S). Rh. 

 luteolus Fries (S, N, F), Melanogaster variegatus (Vitt.) Tul. (S, Dj, 

 M. ambiguus (Vitt.) Tul. (S, D) and M. tuberiformis Cda. (D) and in 

 addition the 2 species: Scleroderma vulgare Fries (S, D, N, F) and 

 Endogone macrocarpa Tul. (S). 



