MASTIGOPHORA. 103 



acute or slightly rounded ; cells smallish, roundish-quadrate 

 margin irregular, walls thick, angles thickened. Stipules very 

 large, considerably broader than the stem, broadly ovate, divided 

 to about the middle, segments broadly subulate, acute, irregularly 

 spinulose, sinus obtuse, at both sides of their base calcarate. 



Neither male nor female flowers have been observed. 



Dimensions. — Stems 2 to G inches long, diameter "2 mm., with 

 leaves 1'5 mm. wide ; branches with leaves 75 m.m. wide ; leaves 

 1"1 mm. X 1"5 mm. ; segments 75 mm., "G mm., '9 mm. x 1*2 mm. 

 seg., "G mm., '5 mm. ; branch leaves 75 mm. x "85 mm., seg. 

 •4 mm. ; cells '03 mm. x 0*2 mm., '025 mm. x -0.25 mm. ; stipules 

 •9 mm. X "9 mm., segments "55 mm., "8 mm. x "G mm., seg. '4 mm., 

 7 mm. X '6 mm., seg. '45 mm. ; branch stipules '6 mm. x "8 mm., 

 seg. *3 mm. 



Hab. — Growing in large and rather densely crowded patches 

 in boggy places or damp banks and rocks, in subalpine localities. 

 Extremely rare. Discovered by Mr. Joseph Woods in 1809 on the 

 ascent of Mangerton from Cwm na Cappal, Ireland. Brandon 

 Mountain, Dr. Ta/jlor, W. Wilson. Devil's Punch Bowl, Man- 

 gerton, Br. Taijlor, Steioart and Holt. Conner Hilh Dingle, 

 Dr. D. Moore. Carrantual, Dr. D. Moore. South of Ireland. 

 IG. Moidart, West Inverness, 8. M. Macvicar, 1898. 17. 

 Faroe Isles, Rostrup, 1867. Himalayas (fide Milfeii). 



Obs. — This fine, beautiful and extremely rare species is 

 remarkably distinct, and not to be confounded with any of our 

 native ones, except perhaps Blcpharozia cUiaris, which might be 

 mistaken for it, but from which it differs in the shape, margin, 

 and structure of the leaves and stipules. 



Description of Plate XXXVII. — Fig. 1. Plants natural size 

 (Mangerton, Holt). 2. Portion of stem, antical view (after 

 Hooker). 3. Leaf (ditto). 4-6. Leaves x 24 (Mangerton, Holt). 

 7. Branch leaf x 24 (ditto). S. Portion of leaf x 290 (ditto). 

 9-11. Stipules X 24 (ditto). 12. Stipule (after Hooker). 13. 

 Branch stipule x 24 (Mangerton, Holt). 



