43 
as large as our plant, which is not larger than Acaulon muti- — 
cum ; the stems are also longer and much more distinctly innovating 
below the apex; leaves more loosely imbricated, obovate-oblong, 
towards the apex (which is subcucullate), rather strongly papillose on 
the back usually incurved and entire and early subechlorophyllose on 
the margins, areolation at the base less lax, costa with the excurrent 
‘portion shorter, narrower and less scabrous, its lamelle (2-4) vertical 
and wavy, and with the margins entire ; capsule somewhat exserted, 
larger, wider-mouthed, somewhat constricted under the mouth when 
dry ; its rim is distinctly seen to be formed of a more solid row of 
cells ; operculum with a longer rostratum ; calyptra smaller (barely 
more than covering the operculum); spores larger, fuscous, very 
opaque, minutely but distinctly papillose; male flower near the 
apex of the stem, etc. 
5 Barbula Rauei, n. sp.—Plante perhumiles gregario-cxespitos 
annus ; caule perbrevi inferne nudo vel microphyllo, foliis rigidius- 
culis in rosulam congestis siccitate crispatis spathulato-ovatis cym- 
biformi-concavis acute acuminato-apiculatis levibus margine planis, 
costa validiuscula nuda cum acumine vel paullulum infra eum desi- 
nienti, reti basilari laxo ceteroquin parvo subobscuro inequali sub- 
rotundo, perichewtialibus tenuioribus (haud exsertis) convolutis 
sepe muticis tenuiter obsoleteve costatis, capsula in pedicello 
pertenui semiunciali erecta oblongo-cylindrica siccitate costata 
atque leniter ad dextram torta, annulo augusto, peristo- 
mium dentibus longis in fune arcte contorquatis fere ad basin 
discretis, operculo elongato-conico (rostrato) recto, calyptra vix 
dimidiam partem capsule obtegente longe rostrata leniter torta; 
inflorescentia dioica, flores utriusque sexus paucissime paraphysatis, 
paraphysibus cylindricis: plant masculares triplo-quintuplo min- 
ores inter femineas mixte ; foliis indistincte eroso-dentatis omnibus 
valide costatis, paraphysibus subnullis. 
On rocks, Matagorda County, Texas, &. G. Bechdolt (July 
1870). Communicated by Mr. # A, Rau. 
A small species, readily distinguished by the spatulate concave 
acute smooth leaves, by the much twisted peristome without a 
basilar membrane, by the minute size of the male plants (growing 
with the female), &c. 
~ 6. Grimmia Jamesii, x. sp.—Pulvinato-cespitosa; caule brevi 
radiculoso, foliis in siccis erectis’ inferioribus parvis appressis muti- 
cis superioribus fragilibus raptim in comam augentibus confertis 
oblongo-vel ovato-lingulatis dimidio superiore convoluto-concavis 
‘levibus margine planis nudis, apice in pilum subulato-filiformem in- 
canum scabrum producto, costa mediocri ad apicem desinienti, are- 
olis inferioribus parvis quadratis pellucidis cateris valde obscuris 
minutisque, capsula rotundo-ovali in pedicello pertenui flavido leni- 
ter exserta e flavida ad rubrum transeunti siccitate macrostoma 
obconica leniter striata, annulo angustissimo (nullove ?), peristomii 
dentibus pallido rubris brevissimis latis tri—quadrifidis inferne 
valde cribrosis, operculo brevissime convexo-acuminato, calyptra 
magna oe pete org basi inequaliter parum lobata.— 
Grimmia orbicularis, James in Watson’s Catalogue of the Plants of 
(-Con, p- S2- 
