﻿96 Dixon: New and rare Australasian 



lingulato-lanceolata, suhstricta; caulina plura acutiuscula, saepius 

 aeque ac ramulina rotundato-ohtusa, perconcava, carinata, mar- 

 ginibus ad apicem fere late recurvis integerrimis. Costa valida 

 (ad basin 120 /x lata) ad apicem vel infra soluta. Cellulae basilares 

 longiuscule rectangulares, pellucidae, parietibus firmis, superne 

 quadratae, vel quadrato-rotundae, 8-10 n latae, subpellucidae, 

 haud incrassatae, laeves. Perichaetium bene exsertum, bracteis 

 internis erectis, e hasi convoluta margine superiore eroso-denticulato, 

 in mucronem hr&vem strictum latiusculum ahrupte angustatis, e 

 cellulis saepius elongatis laxioribus instructis. 



Seta I cm. alta vel paullo ultra, rubra; theca elliptica vel 

 breviter cylindrica, circa 2 mm. longa, aetate castanea, sub- 

 pachydermata. Cellulae exothecii omnes, juxta fere ad orificium 

 ipsum, elongatae, parietibus incrassatis, flexuosis. Peristomium 

 parvum, intense rubrum, e dentibus 16 compositum inferne inter 

 se adhaerentibus (faciliter tamen solutis), coronam rubro-purpur- 

 eam densissime lamellatam circa 60 n altam instruentibus, 

 superne in crura bina ter longiora erecta filiformia remote; articulata 

 densissime papulosa divisis. Spori minuti. ODerculum haud 

 visum. Dioicum videtur. 



Habitat: in a boggy place in grass paddock, among rushes, 

 Mt. Bruce, Wairarapa, New Zealand, September 18, 1913, W. 

 Gray 176. 



This appears to me to be a very well marked species, in the 

 obtuse leaves with widely reflexed margins, and, the exserted 

 convolute perichaetial bracts. The nearest species is perhaps 

 Trichostomum Cockaynii R. Br. ter., which resembles it somewhat 

 in the leaves, but has quite different perichaetium and exothecium 

 structure. 



The short erect divisions of the peristome seem to refer this 

 plant best to Didymodon, in spite of the exserted perichaetium; 

 but the filiform, highly papillose cr^a are rather more like those 

 of Barbnla, and it might perhaps not improperly be placed in the 

 section Streblotrichum of that genus. It is in any case very 

 different from the New Zealand species {B. calycina) of that group. 



Cinclidotus australis Dixon, sp. nov. 



Stirps elongata, robusta, submersa, mollis, habitu C. fon- 

 tinaloides, superne olivacea, inferne nigricans; caulis distanter 

 ramosus, ad 8 cm. longus, infra folior 



