40 CRYPTOGAMIA MUSCL 



shaped, pendulous ; calyptra swollen and angled at the base, with 

 a long beak tipped with a bristle. 



Hab. On walls, banks, and heaths. Spring. 



DILLENIUS remarks that this moss " prse aliis gaudet locis 

 carbonariis et ubi praecedentibus annis ignes fuerunt." 

 Thus it springs up, in company with Didymodon purpu- 

 reum, wherever the whins and heath have been burnt 

 down on our moors ; and its luxuriance and vast profusion 

 in these places is very remarkable. 



18. ORTHOTRICHUM. 



* Fringe of the capsule without ciliary processes. 



1 . 0. anomalum, stems erect, branched ; leaves spreading, Ian. 

 ceolate, erect when dry ; fruitstalks exserted ; capsule ribbed ; 

 fringe of 8 double teeth ; calyptra slightly pilose. 



Hab On rocks and stones. 



2. O. cupulatuin, stems erect, branched ; leaves spreading, lan- 

 ceolate, erect when dry ; fruitstalks not raised above the leaves ; 

 capsule ribbed ; fringe of 16 double teeth ; calyptra slightly pilose 

 or naked, 



Hab. On stones at the sides of waters and rivulets, frequent. 



3. O. Drummondii, stems creeping ; leaves lanceolate, crisped 

 when dry ; fruitstalks exserted ; capsule long, clavate, contracted 

 at the aperture, furrowed when mature ; lid with a long beak ; 

 fringe of 16 reflexed teeth; calyptra very pilose GREVILLE, 

 Crypt. Fl tab. 115. 



Hab. On trees. On the trunks of alder below Langlev- 

 ford, Northumberland. 



This is very distinct from either of the preceding, but much 

 resembles Or. crispum described below. The leaves are 

 soft, and yellowish-green. The specific name comme- 

 morates the zealous botanist who accompanied Captain 

 FRANKLIN on his second journey to the shores of the Po- 

 lar Sea, and who has again departed on an exploratory 

 botanical excursion to the north-west coast of America. 

 His account of a journey made into the Rocky Moun- 

 tains, the critic has remarked, " is extremely interest- 

 ing, as shewing the hardships to which these * cullers of 



