BABUL A. 71 



ovate or olxjviite, convexulous, entire, or when gemmiparous, erose; 

 postical lobe about one-third the size, rhomboid, subquadrate 

 or quadrate, obtuse or acute at the free angle, tumid at the base, 

 upper portion plane and appressed to the antical lobe ; cells 

 small, hexagonal, lumen usually filled with chlorophyllose 

 granules, walls moderately firm, trigones very minute or not 

 observable. Bracts, antical lobe oblong-obovate, postical oblong- 

 quadrate narrow. Perianth projecting two-thirds beyond the 

 bracts, oblong-obconical, vvith a tapering base, complanate, mouth 

 truncate, quite entire. Pistillidia 8-10. Calyptra with a long 

 neck, delicate, pyriform. Capsule oblong-oval, dividing to the 

 base into 4 oval valves. Spores subspherical, finely granulate. 

 Elaters bispiral, loosely twisted. 



Male stems irregularly pinnate, catkins lateral, long or short, 

 consisting of from 8-15 pairs of perigonial bracts, which are 

 closely imbricate, erect, tumid, bilobed ; antical lobe oval, 

 postical shorter, roundish-oval ; antheridia oval, large, solitary. 



Dimensions. — Stems f inch to 1 inch long, with leaves 1' 

 mm.-l*25 mm. wide, diameter '17 mm. x '11 mm., '16 mm. x 'll 

 mm., '15 mm. x '11 mm., leaves, antical lobe 1*2 mm. x "8 mm., 

 1'2 mm. X 7 mm., I'l mm. x "8 mm., 1' mm. x "7 mm., 1" mm. x 

 •6 mm., postical '7 mm. x "3 mm., '6 mm. x '4 mm,, 6 

 mm. X '35 mm., '55 mm. x "35 mm., -4 mm. x "3 mm. ; cells "02 

 mm.; bracts, antical lobe 11 mm. x '6 mm., postical '8 mm. x 

 '4 mm., antical 1* mm. x "5 mm., postical '9 mm. x •4 mm. ; pistil- 

 lidia ■12 mm. X "04 mm. ; perianth 2'2 mm* x 1*1 mm., 2*1 mm. x 

 •9 mm. ; valves of capsule "9 mm. long; spores "044 mm. diam. ; 

 elaters -28 mm. x '006 mm. ; male spikes 1' mm. long, '2 mm.- 

 •4 mm. wide ; perigonial bracts, antical lobe '8 mm. x '4 mm., '7 

 mm. X '45 mm., '025 mm. x 45 mm., '6 mm. x •45 mm., '6 mm. x 

 •4 mm., postical '6 mm. x '4 mm., '45 mm. x '3 mm. ; antheridia "2 

 mm. x "15 mm.; gemma) 1 mm. diam. 



Hab. — In procumbent patches, with stems imbricating, on 

 rocks, or erect when intertwined with mosses (Dicrauum falcatum, 

 &c.) ; in alpine situations. Rare. 



15. Pvocks by the Burn, Forfar, A. Croall Loch-na-Gat, Ben 



