Muscti Exortici.—WMenziesiani. 
ORTHOTRICHUM LONGIPES. 
Orthotrichum caule procumbente, ramis erectis, foliis 
ovato-lanceolatis striatis siccitate tortis, seta longis- 
sima, capsula ovali-elliptica levi, calyptra glabra mul- 
tifida, ciliis nullis, dentibus 16 per paria approxima- 
tis. (Tan. XXIV.) 3 
Hap. In sinu Dusky Bay dicto, in Nova Zeelandia. D. Menzies, 
1791, 
Caulis procumbens, valde ramosus. Ramivix unciam lon gi, erecti, 
simplices vel divisi, Folia undique denseque imbricata, erecto- 
appressa, apice subincurva, siccitate spiraliter torta, aureo- 
flavescentia, subnitentia, lanceolata, obtusiuscula, striata vel 
etiam subplicata, sub lente minute punctata, margine integer- 
rima, nervo valido fusco, sub summum apicem evanescente, 
Instructa, Perichetialia his simillima sed paululum angusti- 
Ora, estriata. Sete terminales, numerose, sed seepissime, eX 
caulis innovationibus, laterales, biunciales, erecta, flexuosze, ru- 
bre. _Capsula oblongo-elliptica, sordide fusea, levis vel ad oris 
marginem solummodo sulcata, erecta. Operculum subulatum, 
strictum, capsula vix brevius, flavescens. Calyptra glabra, mi- 
triformis, castanea, usque ad apicem sulcata, basi ad dimidiam 
partem in segmenta angusta numerosa fissa. Peristomium 
simplex, 16-dentatum, dentibus longiusculis per paria ap- 
proximatis, pallidis, transversim obscure striatis atque linea 
media longitudinali notatis, erectis vel declinatis. 
On the first aspect of this plant I conceived that it and some 
other Australasian individuals with the same habit would have be- 
longed to the genus Sclotheimia of Bridel and Schaegrichen; but 
after the most minute investigation I am unable to detect any in- 
ternal peristome (though I think that the columella, which before 
the ripening of the capsule is exserted, might by a casual observer 
be mistaken for one), or any character which can induce me 
to keep it distinct from Orthotrichum, many of which, as is suffi- 
ciently well known, have only a single peristome. 
Fig. 1, plant when moist, Fj i : 
Se : . g. 2, ditto, when dry, zat. size. 
the mite to ae *, eapsule. Fig. 7, ditto, with 
+t : 1g. itto i : . 
Portion of the peistitcmamern the peristome, Fig. 9, 
