164 DIPLOPERISTOMI. [Hypnum. 



division with "shoots plane;" but then the upper leaves are 

 subsecund, and from this circumstance, and the general habit of 

 the plant, it assimilates very much with that variety of H. cu- 

 pressiforme which, by the British Botanists, has been called H. 

 polyanthos^ (not Leskea polyanthos^ Hedw.) and which is pro- 

 bably the same as the H. incurvatum of Schrader. From this, 

 indeed, Schwaegrichen warns us to distinguisli our plant: 

 " Differt," he says " a sequente (H. incurvato) operculo brevi, 

 theca subcyiindrica ascendente et colore pallido." Wahlenberg, 

 on the other hand, says it is closely allied to H. denticulatum. 

 This must not be confounded with the H. pulchellum of Hed- 

 wig, which is now called H. striyosum. 



-{ s Leaves striated. 



21. H. rufescens ; leaves erecto-patent lanceolate acuminated en- 

 tire striated faintly two nerved at the base, capsule ovate 

 nearly erect, lid conical. (TAB. XXV.) 



Hypnum rufescens. Dicks. PI. Crypt. Fasc. 3. t. 8. / 4. Smith, 

 Fl. Brit. p. 1316. Engl Sot. t. 2296. Hook. Fl. Scot. P. II. p. 

 143. Hobson, Brit. Mosses, v. 2. n. 61. Drummond, Fl. Scot. v. 2. 

 n. 66. Am. Disp. Muse. p. 64-. 



Leskea rufescens. Moug. et Nestl. n. 514. Schwaegr. Suppl. v. 1. 

 P. II. p. 178. t. 88. Funck, Deutschl Moose, t. 36. / 13. Brid. 

 Meth. p. 143. 



HAB. Scotch alps, not rare. 



Of this very beautiful moss the stems are from three to four 

 or five inches long, erect, and the whole plant of a yellowish 

 purple colour ; sometimes very small, and then much resembling 

 H. incurvatum. It is not uncommon in Scotland, and bearing 

 fructification, according to Mr. Drummond. 



22. H. polyanthos ; leaves erecto-patent ovato-lanceolate remarka- 

 bly acuminated minutely serrated at the point smooth ob- 

 scurely two-nerved at the base, capsule ovato-cylindrical 

 erect, lid conico-acuminate. (SUPPL. TAB. V.) 



Hypnum polyanthos. Hooker in Drummond, Muse. Scot. v. 2. n. 87. 

 Arn. Disp. Muse. p. 69. 



Leskea polyantha. Hedw. St. Cr. v. 4. t. 2. Web. et Mohr. (not 

 H. polyanthos Engl. Bot.) Brid. Meth. p. 146. Schwaegr. Suppl v. 

 1. P. II. p. 69. 



HAB. On Apple-trees near Darlington. Mr. W. Back' 

 13 



