76 SYMBOLJi AD P'LUllAM MYCOLOGICAM AUSTKALIiE. 



63. Stemonitis fusca, Roth. Roth. Flor. Germ. p. 448. — Rockliamp- 

 ton, in Queensland, in truncis putridis, leg. A. Thozet. No. 681. 

 Com. de Miiller. 



MYCELIA. 



Determ. — De Thumen. 



64. Xylostroma Corium, Pers. Peis Myc. eur. i. p. 93. — Melbourne, 

 iu trunco putrido Eucalypti, leg. et com. de Aliillei; 



BLYTTIA MORKII, N. AB E. 



One of the Frondose Hepatic^, a new species to Britain. 



B. Morkii, N. ab E. Synopsis Hepaticarum. 

 Hamburgi, 1844, p. 474. 



Pallavicinia Morkii, Lindberg, sec, Carrington. 



In July, 1874, at a considerable elevation on Ben Lawers, 1 met 

 •with this plant, not before known as British. It occurred in 

 solitary plants, about half an inch long, furcate, with margins 

 irregularly crisped and complicated at the apices, bearing no small 

 resemblance in habit only, to forms of Fossombronia. I at once 

 recognised this plant as new, and a member of the Blyttite from the 

 male flowers, visible with the naked eye, so conspicuous from the 

 lacerated leaflets, like those of our Sussex state of B. Ly^llii. The 

 Ben Lawers plant, like our B. Lyellii also barren. 



The Sussex B. Lyellii from the Sand Rocks has long flat, or 

 scarcely nnduhite fronds, and is gregarious. 



Not being able to correctly determme the species of the Ben 

 Lawers plant, I sent it to Dr. Carrington, who with his habitual 

 kindness, pronounced it Pallavicinia Morkii, sending also a speci- 

 men from Norway for comparison. It is probable it will be found 

 on other high Scotch mountains, if sought for. 



The following extracts from Nees' Synopsis shew the position in 

 the tribe, the nature of the inflorescence, and the variations of the 

 fronds. 



Kemicycluin, 2. FrondoscB. 

 1. Codoniae. 

 Fossombronia. Raddi. 

 Androcryphia. Nat. E. (exotic). 

 Petalophyllum. GottscJu. 

 Zoopsis, Hook.,fil. (New Zealand). 



2. Diplomitricse. 

 Blyttia, Endlicher. 



Blyttia. Frons simplex aut bifida, costa media ante limbum 

 apicis desinente, subtus radiculosa, pr^edita ; pr^eter costam 



