GRIMMIACEAE. It 
The vaginula is in this form clothed with a dense mass of pure-white hai 
conspicuous under the lens ; and there is in addition a very highly developed 
ochrea, forming a white sheath reaching often to the base of the capsule 
itself. These characters appear to be constant throughout a given tuft, 
though the development of the ochrea may vary vnvelitioee These plants 
have, in short, all the appearance of a distinct speci 
ut side by side with these occurs a plant sinvitee in all respects but 
without any development of the ochrea, and with the vaginula only 
Moreover, I have seen plants with the normally exserted capsule, but 
showing here and there a distinct, elongate ochrea. I feel bound, therefore, 
to unite all these under O. calywm, but I think the short-setaed plant with 
small, much constricted areal ae fairly be described as a variety. It 
is partly, no doubt, this variability in O. calvum that has led Brown to the 
— of the two new species placed above im the synonymy. 
nov. brevisetum Dixon. Seta perbrevis, multo brevior quam theca. 
Thisdi y parva, sicca apud et infra orificium valde coarctata ; vaginula pierumque 
pilosissima ; ochrea saepe bene evoluta, albida, elongata, setam vaginans. 
Hab.—On willows, Mauriceville, Wairarapa, Dec., 1909; leg. W. Gray 
(No. 6). Also from several other spots in the same locality. 
The species may be a fairly distributed one, but, as in the case of most 
species of the genus, I have only scanty data to go upon. None of the 
species are at all well represented in out national collections, yet it would 
not seem likely that they are all rare. Indeed, from the material I have 
received from Mr. Gray, Mr. Petrie, and others I should judge the contrary 
to be the case; but the localities are too restricted to enable any fair idea 
to be formed of the general distribution. 
Subgen. II. Gymnoporus. Stomata superficial. 
4. Orthotrichum lancifolium R. Br. ter. in Trans. N.Z. Inst., vol. 27, 
p. 429. 
Syn. O. rufidens Vent., MS., in sched. 
pecies is notable for the very beautiful rose-red colour of the 
t 
. lancifolium is 
undoubtedly the same thing. The justification for including Venturi’s 
MS. name in the pide’ is that the plant _ long been distributed and 
known under that na 
be of some use ae give here the dapmeiacon which I had drawn up 
for publication before I wh seen Brown’s plant and recognized that it was 
an already published speci 
axime variabile ; | pie flavo-viride, infra rufescens. Caulis 
circa 1mm. altus, fastigiate ramosus ; folia elongata, sicca flexuosa vel 
aetate subaurantiaca, leptodermica, estriata vel infra orificium leniter striata, 
raro per totam longitudinem leniter plicata, oblonga vel oblongo-cylindrica, 
infra orificium parum constricta ; ealyptra parce pilosa.* Exothecii cellulae 
* In the ; er of the form of the capsule I refer to it, unless otherwise 
mentioned, in the dry condition. 
