r-ORELLA. «.S 



about 3 times smallor than the antical, oblong' or oblong-ovate, 

 apex obtuse or subacute, margin irregularly- dentate ; bracteole 

 broadly ovate, irregularly dentate. Pistillidia numerous, 10-22 

 long and narrow. Male stems pinnate, with few short branches 

 androecia numerous on short lateral alternate catkins ; perigonial 

 bracts G-8 pairs, closely imbricate, erect, bilobed, postical lobe 

 small and oblong ; antheridia subspherical to oval, solitary. 



Dimensions. — Stem 2 to 3 inches long (var. forva 1 inch), 

 diameter "4 to "5 mm., with leaves 2*25 mm. to 3' mm. wide ; 

 leaves, antical lobe 1"8 mm. x 1\S mm., postical 1'2 mm. x '5 mm., 

 antical 1 "5 mm. x 1"2 mm., postical "85 mm. x "5 mm., antical 

 L"8 mm. x L"5 mm., postical 1' mm. x "6 mm., antical 2' mm. x 

 1*75 mm., postical 1*4 mm. x '75 mm., antical 1' mm. x "8 mm. 

 postical "6 mm. x '4 mm. ; cells "03 mm. x '02 mm., '025 mm. x 

 '025 ram., •025 mm. x -02 mm.; stipules 1' mm. x 1. mm., 

 1"3 mm. X "D mm., "7 mm. x 7 mm., '7 mm. x "8 mm., 1* mm. x 

 •8 mm. ; bract, antical lobe 17 mm. x 1-2 mm., postical r35 mm. 

 X 'G mm., antical 2*25 mm. x 2 mm., postical 1'5 mm. x L* mm. ; 

 bracteole 1*25 mm. x 1'25 mm., 1*1 mm. x "8 mm. at base ; pistil- 

 lidia "4 mm. X '075 mm. ; perigonial bract, antical lobe 1"5 mm. x 

 1* mm., postical '8 mm. x i mm. ; perigonial bracteole "75 mm. x 

 '45 mm. ; antheridia 4* mm. x "35 mm. 



Har. — On rocks, stones or trunks of trees. Rare. 



1. Var. forva, Penzance, W. Curnotv. 2. Var. torva, Sussex, 

 6'. Dcwles. 7. Ravine above Barmouth, Merioneth, Br. Carrhfj- 

 ton. Near Snowdon, Carnarvon, Dr. Carrin/jfo/i. 12.? 16. 

 Braemar, ])r. A. 0. Black. I. Cromaglovvn, Dr. Carri/if//on. By 

 Lough Mangerton, Ifolf and Stewart. 



Found on the Continent (France, Monta(/nn. Oporto, Portugal, 

 Neioton, S- Var. torva, Italy, de No tar is). 



North America. 



Obs. — Remarkable for its somewhat robust habit, dark brown 

 to almost black colour, leaves being very closely imbricate, invo- 

 lute when dry and slightly polished, and rounder than any other 

 of the British species. 



Distinguished from /-'. j)lati/p/ii/f/a (L.) by its rounder loaves, 



