ON THE NEW SPECIES OF TVHTSCI. 449 



Grimmia leiocarpa, is G. leucophcea, var. capsula subro- 

 tunda. — G. campestris is not distinct from G. leucophcea. 



Grimmia cygnicolla, is G. pulvinata var. j3. obtusa, (Br. et 

 Sch.) 



Orthotrichum elongatum. — Dr. Greville's specimen com- 

 prises two species, one with a smooth capsule and eight cilia, 

 the other with a substriated capsule and sixteen cilia. The 

 first is closely allied to O. leptocarpum, (Br. et Sch.) 



Schlotheimia oblonga, is truly Orthotrichum longi/olium, 

 Hook. Muse. Exot. Though this Moss has a double peris- 

 tome, the calyptra shows it to belong to Macromitrium (Bri- 

 del.) 



Zygodon Drummondii. — All the specimens sent to me by 

 Dr. Taylor under this name certainly belong to Codonoble- 

 pharum Menziesii, (Schwaegr. Suppl. t. 137), and to this Dr. 

 Taylor's description of the leaf and operculum seems to refer. 

 Of the Zygodon itself we have seen no specimen. It is pro- 

 bably the same as a Moss from New Zealand (Menzies, n. 66) 

 which Dr. Taylor has sent under the name of " Codonoble- 

 pharum Menziesii," but which is Zygodon angustifolius, (Hook, 

 et Greville, MSS.) Probably Mr. Menzies distributed both 

 Mosses under one name, since there is no counterpart in the 

 Hookerian Herbarium of what was sent to Schwaegrichen. 



Didymoden luteus, is nearly allied to D. sguarrosus, 

 (Hook.) ; it appears to be the same as Neckera viticulosoides 

 (P. Beauv.), or rather one of the two Mosses given by P. Beau- 

 vois under that name. 



Barbula Jamesoni, allied to the last, has the peristome of 

 Trichostomum (Br. et Sch.), and in habit is very unlike a 

 Tortula, 



l&ogrammes. Je n'ai pas rencontre' d'autre moyen de propagation. On 

 ne pourra jamais regarder ces organes comme de vraies spores." In this 

 case the cuneiform masses consist of the cellular tissues containing a 

 number of spores in a state of aggregation ; the only difference being that 

 the cellular tissue is not, as in ordinary cases, absorbed or broken up into 

 solitary cellules. In sections of the half-ripe capsule of Splaehnum spha- 

 rirum the radiating lines of spores are very conspicuous. 



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