BLYTTIA MOUKII, N. AB E. 77 



tenera et membranacea. luvolucrum monophyllum, lacerum, 

 primo terminale e costa frondis ortum, dein ad speciem dorsale. 

 Perianthium tubulosum, capsula ovalis, elateres decidui. Iii- 

 florescentia uiascula dorsalis, e costa oriens, foliolis laceris tecta. 

 Antherte filameato brevi suffultaj. Vegetatio frondosa costata. 

 B. Mbrkii. N. ab E. 

 ' B fronde sessili, obovata retusa, involucri laciniis lobatis plicatis. 

 ^ contoxta. 

 Fronde brevi apice valde dilatata subrotundata, subinfundibuli- 

 fonni undato subcontorta. 



Habitat locis alpinis et subalpinis Germanic Norvegi^e. 

 B. Lyellii. Endlicher. 

 a major. 

 Fronde (subunciali) lineari explanata margine, siibrepando hinc 

 inde serrato leniter undiilato, calyptra periantbium aeqnante, 

 squamis perigonialibus confertis laceris. 

 fi Flotoviana. 

 Fronde (breviori) oblonga undulato lobata marginibus adscenden- 

 tibus crenulatis, calyptra periantbio duplo breviore, squamis peri- 

 gonialibus confertis laceris. 



Habitat locis udis palndosis, ctespitibus laxis. 



B. Hibexnica. Hook. N. ab E. 

 Fronde (nnciali, quadriunciali), sublineari dicbotoma planiuscnla 

 marginibus repandis lobalisve, calyptra periantbio breviori, squamis 

 perigonialibus alternis ovatis ovalibus parce dentatis. 

 Habitat ad saxa rivulosum montorum. 



From the foregoing it will be seen tbe Scotch B, Morkii, and 

 the Sussex B. Lyellii, are, as regards tbe fronds, the beginning and 

 tbe end of the scale. But the first somewhat resembles B. 

 Hibernica, utterly distinct though. Starting as B. Morkii does 

 with a simple frond, ending with a crisped, contorted, complicated, 

 frond. 



The addition of Blyttia Morkii to the British Flora, makes it 

 embrace all the European species of this group. 



G. Davies. 

 Brii?hton. 



Note on Lactarius Turpis. — The cuticle and tissue contiguous 

 to it, of Lactarius turpis, contains a red colouring principle freely 

 soluble in a dilute solution of potash, to which it communicates a 

 rich purple tint. The addition of a mineral acid to this solution 

 causes the precipitation in an amorphous form of the red colouring 

 matter, which r«j)roduces the purple colour when treated with 

 potash. This colouring principle is not soluble in alcohol, nor in 

 mineral acid. The latex, the spores, the flesh and the gills do not 

 yield it. It seems to be analogous to similar colouring prin"biples 

 existing in lichens. C. J. Muller. 



