BRYOLOGICAL NOTES 359 



Hah. Chile : (Poppig), Corral (Krause), Valdivia. 



Allied to Barhula robiista (Hook. & Grev.) Brid., and to B. 

 serndata (Hook. & Grev.) Brid., in both of which species the margin 

 of the leaf, although originally described as "plane," or "erect," 

 is narrowly revolute at about the middle of the leaf, as in the 

 present species. 



(17). POGONATUM PAUCIDENS Bescll. 



In the description (Ann. Sci. Nat. vii. ser. xv. 70 (1892) ) which 

 Bescherelle gives of his species, the most important specific 

 characters are those connected with the lamellae of the leaf, and 

 with the structure of the peristome, viz. " lamellis ... in sectione 

 transversali apice longe bifidis subfimbriatis," and " peristomii 

 dentes 24!" Bescherelle remarks (I.e.) of "P. paiicidens" : — 

 " Plante voisine du P. microstomnm E. Br. de I'Himalaya ; en 

 differe cependant par les capsules papilleuses et le peristome 

 compose de 24 dents seulemeut." The moss here described by 

 Bescherelle came from Cliina (Yunnan, bois de Ma-eul-chan, a 

 2800 metres d'altitude, 9 juillet, 1889 (Delavay, sine num.) ). 

 Amongst a few mosses lately brought to Kew from Yunnan by 

 Dr. A. Henry, I found specimens of a Pogouatum, which on ex- 

 amination made me suspect the specific distinctness of " P. pauci- 

 dens."' These specimens collected by Dr. Henry ("Yunnan, mts. 

 to S.W. of Mengtse, 6000 ft., no. 13,714a," and "Yunnan, mts. 

 to N. of Mengtse, 6000 ft., no. 13,714 ") showed all the characters 

 described for P. paiicidens, except that the peristome possessed 

 thirty-two teeth. This led me to compare the type-specimens of 

 P. paiicidens in Bescherelle's herbarium with the series of P. micro- 

 stom 11)11 in the Kew Herbarium, with the result that I find the two 

 to be identical. In the first place, in Bescherelle's own specimens 

 from the type locality, the single capsule which I examined showed 

 thirty teeth, two of which were larger than the rest, and repre- 

 sented, I believe, four teeth confluent in pairs. Further, in 

 another specimen named P.paiicide)is in Bescherelle's handwriting, 

 from " Koua-la-po, Hokin, Yunnan, avril 1885, Delavay, sine 

 numero," the capsule examined had thirty-two teeth. In its peri- 

 stome, therefore, "P. paiicidens'' agrees with P. microstomnm, 

 although it sometimes varies in some of the teeth becoming con- 

 fluent, a fact which doubtless accounts for Bescherelle's description 

 of the peristome. In the second place, the capsule of P. micro- 

 stomum, although described by Schwaegrichen (Suppl. ii. vol. ii. 10, 

 tab. cliy.^ (1827)) and Bridel (Bryol. Univ. ii. 745 (1827)) as 

 " Zfgyu-," is really in its upper half " granuloso-papillosa," exactly 

 as in Bescherelle's type-specimens of " P. paiicidens.'' 



The marginal cells of the lamellae of the leaf are very charac- 

 teristic in the present species. Lindberg (Obs. Europ. Polytrichoid. ; 

 Notiser pro Fauna et Flora fenn. ix. 98, 1867) gives a good de- 

 scription of them. After placing P. microstomnm in the section 

 " margo lamellarum, in sectione transversa stamina phaneroga- 

 marum baud male aBmulantium, a duobus stratis cellularum for- 

 matus," Lindberg remarks: — "Lamellae omnium pulcherrimae, ut 



2d 2 



