160 THE JOURNAL OF BOTANY 



Dhui. — S. obliqua (Am.) Schffn. 92. Apparently not uncommon 

 on Lochnagar and Ben Muich Dhui. This plant, which seems to 

 be one of the most distinct of the recently distinguished species 

 of Scapania, is generally recognizable at a considerable distance 

 by its brownish colour and the swollen tufts which rise con- 

 spicuously above the level of the other plants growing round the 

 spring heads which it often affects. — S. paludosa K. Mull. var. 

 vogesiaca K. Mull. 90. Canlochan, rare. 92. By a spring on 

 Lochnagar, alt. ca. 3500 ft., a tall red-stemmed plant with the 

 marginal cells of the leaves not so strongly thickened as in the 

 Canlochan plant, but otherwise well characterized. — S. rosacea 

 (Corda) Dum. 89. Near the head of Canlochan, sparingly. — 

 S. umbrosa (Schrad) Dum. 92. Common on logs near Braemar. 



Radula Lindbergii Gotts. var. germana Jack. 90. Canlochan. 



Madotheca rivularis Nees. 92. Linn of Corriemulzie. 



Cololejeunea calcarea (Lib.) Schffn. 92. Limestone rocks, 

 Creag Choinnich, not uncommon. 



FruUania fragilifolia Tayl. 92. Bocks, Craigandarroch, near 

 Ballater ; trees, Creag Choinnich, sparingly. 



Explanation of Plate 526. — Figs. 1-6, Diplophylhim gymnostomophilum 

 Kaal. 1, stem with leaves ; 2,3, antical lobes ; 4, leaf-cells of antical lobe ; 

 5, leaf-cells of postical lobe; 6, gemmae (Glen Beag). Figs. 7-9, Marsupella 

 apiculata Schiffn. 7, portion of stem ; 8, leaves ; 9, areolation of upper part 

 of leaf (Ben Muich Dhui). 



NOTES ON THE MYCETOZOA OF LINN^US. 



By G. Lister, F.L.S. 



The International Botanical Congress, which met in Brussels 

 in 1910, decided that the publication by Linne of the Species 

 Plantarum in 1753 should be taken as a starting-point for the 

 earliest generic and specific names of the Mycetozoa. In this book 

 the binomial system of nomenclature is employed throughout for 

 the first time ; and, although as regards Fungi the work shows 

 less grasp of the subject than that of some of Linne's predecessors, 

 the fact of its publication gave an impetus to botanical study 

 which soon led to a fuller recognition of Fungi, and with them of 

 the Mycetozoa. 



In the following notes reference is made first to the species of 

 Mycetozoa described in Species Plantarum, and afterwards to the 

 specimens preserved in the Linnean herbarium in the rooms of 

 the Linnean Society at Burlington House. 



While examining the specimens I had the invaluable assistance 

 of Dr. B. Daydon Jackson, Secretary of the Linnean Society, whose 

 knowledge of the correspondence of Linne enabled him in many 

 cases to identify the handwriting of the notes on the sheets on 

 which the specimens are mounted. 



In the second edition of Species Plantarum, published in 

 1762-3, six or possibly seven species of Mycetozoa are described 



