464 Sir J . E. Smith's Remarks on Hypnum recognition, $c. 



it delicatulum of the Stirp. Crypt, t. 35, which ought, as above 

 mentioned, to have been quoted /. 33. It is indeed H. delica- 

 tulum of Willdenow's Prodromus, and, according to Hedwig, of 

 the generality of Europaean Floras on the continent. The plate 

 of Engl. Bot. t. 1495, is not noticed in the Muscologia. 



This moss is probably to be found in other parts of Britain, 

 though as yet not noticed by any botanist. I am very sure my 

 friends, whom I have thus freely corrected, can never have ex- 

 amined a specimen, or they could not have confounded it with 

 the H. proliferum, from which it differs in not being above half 

 so large, of a less rich and beautiful green, with only bipinnate, 

 not tripinnate, stems, and a short conical lid, instead of one 

 with a long taper beak. Having now compared these two spe- 

 cies, in a fresh state, I can speak to their distinctions even more 

 decidedly than I could in the Flora Britannica. 



The Cyathea fragilis of Fl. Brit. (Polypodivm fragile of Lin- 

 nreus) assumes many different appearances at Matlock, inso- 

 much that I had flattered myself with having found a new species 

 there in the autumn of 1818. But having sowed the seeds of 

 this and the common kind, according to Mr. Henry Shepherd's 

 method, the plants produced, now growing in perfection, prove 

 not even varieties of each other. Poly podium calcareum was raised 

 at the same time ; as well as a kind of Aspidium, from the high 

 rocks on Cromford moor, like the common dilatatum, but smaller, 

 of a darker green and more rigid habit. This last is a mountain 

 plant, found also in Scotland, and I have often thought it might 

 prove a distinct species. Notwithstanding all possible care, I 

 have not been able to cultivate it with any success, so as to de- 

 termine this point. 



I remain, &c. 



Norwich, Nov. .00, 1820. J. K. SMITH. 



XXII. lit- 



