POTTIEI. 267 



leaf-cells narrow, elongated below. I do not find them 

 roundish. 



2. D. inelinatum, Br. ty Schimp. ; subcsespitose ; leaves 

 crowded, subulate above and toothed ; sporangium cernuous, 

 oval, teeth lanceolate, nearly entire or perforated with nume- 

 rous articulations. — Hook. §• Wils. t. xx. ; Eng. Bot. t. 1824. 



Mountain rocks and sands near the coast. Rare. Bearing 

 fruit in summer. 



Monoicous ; forming soft, dull olive-green patches. Ring 

 broader ; spores larger ; leaves more crowded than in the last, 

 shorter and narrower above ; teeth of the peristome wider. 



86. DESMATODON, Brid. 



Sporangium erect or cernuous ; veil rather long, cucullate ; 

 peristome single, of sixteen subulate teeth, united at the base 

 by a common membrane, often split, the divisions free or con- 

 nected by trabeculse ; leaves broad ; leaf-cells above hexagonal, 

 elongated, and very large below. 



1. D. latifolius, Brid.; leaves erecto-patent, oblongo-lan- 

 ceolate, acuminate, mucronate; margin revolute ; nerve ex- 

 current; sporangium subcylindrical, oblong; lid obliquely 

 rostrate ; ring small ; veil twice as long as the sporangium. — 

 Hook. §• Wils. t. xvi. ; Eng. Bot. t. 2492. ; (Moug. % Nest. n. 

 1007.) 



On the tops of lofty mountains. Bearing fruit in summer. 



A doubtful native. Confounded frequently with Anacalypta 

 lanceolata, from which it may be known by the more tapering 

 teeth, which are deeply cloven and mostly free. 



Oedeu XXIX. POTTIEI, Br. & Schimp. 

 Sporangium pedunculate, straight ; peristome none or of six- 

 teen teeth ; veil cucullate ; leaves composed above of rather 

 large hexagonal cells, and large rectangular cells at the base. 



