292 



SCIENCE-GOSSIP. 



a group of grass infected with rings of Epichloe 

 typhitia, forming small white cushions on the stems 

 so often to be seen on dry downs in England, and 

 the " witches'-broom " on hornbeam (fig. 55), 

 caused by Exoascns carpini. 



There is an admirable double index to this book, 

 the first part being of parasites and the second of 

 host-plants, common names, etc. The whole work 



is well produced and forms a fine addition to the 

 botanical literature which should be in every library 

 of scientific works. By its aid and inspiration the 

 study of plant diseases and the economic bearing 

 upon the cultivation of food-stuffs or forest-trees 

 will receive an impetus which, doubtless, in time, 

 will lead to much saving of present loss to the 

 general community. 



PLANTS AND MOSSES IN NORWAY. 



By William Edward Nicholson. 



(Continued from page 268.) 



'npHE following mosses were gathered during 

 the cruise referred to [ante p. 265) in the 

 first part of these notes. The nomenclature follows 

 in the main that adopted in " The Student's Hand- 

 book of British Mosses," recently published by 

 Mr. H. N. Dixon and the Rev. H. G. Jameson, and, 

 with regard to a few species which do not occur 

 in Britain, that of the second edition of ' ' Schimper's 

 Synopsis." The letters " c. fr." mean that the 

 specimens were found in fruit. 



Sphagnum papillosum, Lindb. — Bogs near Odde 

 and Molde. 5. rigidum, var. compactum, Schp. — 

 Common at Vadso and Elvenes. S. rigidum, var. 

 squarrosum, Russ. — Molde, c. fr. S. acutifolium. — 

 Elvenes, c. fr. S. girgensohnii, Russ. — Horre Pass, 

 near Odde. S. lindbevgi, Schp. — Very wet bogs ; 

 Bodo, c. fr., Vadso and Elvenes. This fine species 

 varies considerably in colour, the Bodo specimens 

 being quite pale, while those from Vadso are dark 

 purplish brown. 



Andreaa petrophila, Ehrh. — Rocks, Bodo, Ham- 

 merfest and Elvenes, c. fr. A. obovata, Theden. — 

 Rocks in a stream, Hammerfest. 



Tefraphis pellucida, Hedw. — Rotten birch-stump, 

 Elvenes, c. fr. The specimen is covered with 

 abundant fruit. 



Oligotyichuvi incurvttm, Lindb. — Abundant on the 

 Horre Pass, c. fr. Occurred also in a barren state 

 at Vadso. 



Polytrichum alpintim, L. — Common in most places, 

 c. fr. P. urnigerum, L. — Elvenes, c. fr. P. strictum. — 

 Bogs, Harstad, c. fr. P. fomwsmn, Hedw. — Near 

 Odde. c. fr. 



Ditrichum tortile, Schrad. — Horre Pass, c. fr. 

 Swartzia montana, Lindb. — Crevices in rocks, 

 Vadso, c. fr. S. inclinata, Ehrh. — Damp soil, Vadso, 

 c.fr. 



Salania ccBsia, Lindb. — Sides of a cavity in a peat 

 bog, Bodo, where the peat had been cut for fuel, 

 c. fr. The bluish-green bloom of the leaves of this 

 strange little moss at once distinguished it in the 

 field. 



Cynodontium polycarpum, Schp. — On a stump. 



Elvenes, c. fr. C. virens, Schp. — Rocks at Bodo and 

 Vadso, c. fr. C. wahlenhergii, R. and C. — Rocks on 

 the Tyven, Hammerfest, c. fr. 



Dicranella cerviculata, Schp. — Dry peaty places on 

 rocks, Vadso, c. fr. D. semnda, Lindb. — Common 

 on damp soil by the roadside at Elvenes, c. fr. D. 

 sqiiarrosa, Schp. — Abundant by streams, Vadso, 

 Bodo, and in the more southern parts of Norway. 



Dicranomeisia crispjila, Lindb. — Rocks, Bodo and 

 Vadso, c. fr. 



Dicranum falcatum, Hedw. — Rocky ground, Horre 

 Pass, c. fr. D. starkei, W. and M. — Bodo, c. fr. 

 D. bergeri, Bland. — Marsh at Elvenes, c. fr. D. 

 fuscescens, Turn. — ■ Fir-stump, Molde, c. fr. D. 

 montamim, Hedw. — Birch-stump, Elvenes D. 

 fragilifolium, Lindb. — Common on rotten birch- 

 stumps at Elvenes, c. fr. 



Fissidens bryoides, Hedw. — Rocks facing the fiord, 

 Vadso, c. fr. F. osmundoides, Hedw. — Rocks, Vadso. 

 F. decipiens, De Not. — -Wet rocks near Bergen. 



Grimmia apocarpa, Hedw. — Abundant on rocks, 

 Vadso and Tromso, c. fr. The var. rivularis, W. 

 and M., occurred in a stream at Elvenes. G. ovata, 

 Schwgr. — Rocks in the Nasrodal, by Gudvangen, c. fr. 



Rhacomitrium aciciclare, Brid. — Common on stones 

 in streams and wet rocks, Bergen, Molde and 

 Bodo, c. fr. R. protensum, Braun, — Horre pass, c. fr. 

 R. fasciculare, Schrad. — Rocks near the Lerfoss, 

 Trondhjem, c. fr. if. heterostichicm, Brid. — Stone 

 wall, Tromso. R. sudeticum, B. and S. — Rocks 

 near Odde, c. fr. R. lamiginosum, Brid. — Abundant 

 everywhere, the large grey cushions giving quite a 

 character to thelandscapein some valleys. In scram- 

 bling among rocks the danger of a fall may often be 

 averted by alighting on one of these cushions. 



Hedwigia ciliata, Ehrh. — Rocks, Bodo, c. fr. 



Desmatodou lati/olius, Schp. — Crevices of rocks 

 near Vadso, c. fr. 



TricJiostomum tortiiosiun, Dixon. — Abundant on 

 walls in Tromso and rocks near Trondhjem.— 

 T. fragile, Dixon. — Peaty ground near Vadso. 



Eucalypta vulgaris, Hedw. — Stony ground, Bodo, 

 c. fr. 



