GRIMMIACEAE. 167 
at least in the iva stage, pale pai with a dark-purplish obliquely 
rostrate lid. Peristome O. Calyptra small. 
t is quite dist in the small ‘is: sate leaves with nerve ceasing 
well below the apex, and gymnostomous capsule. 
Hab.—No locality wheiae beyond “ New Zealand ”’ is given by Knight. 
Greymouth ; leg. Helms, in herb, C. Mueller. 
. Brown in Trans. N.Z. Inst., vol. 26, p. 287, it may be recalled, arrived 
at the same conclusion as to the generic position of Z. sulcatus Knight. 
7. Zygodon minutus C. M. & Hpe. in Linn., 1856, p. 211. 
Syn. Z. mucronatus Broth. e Beckett in Trans. N.Z. Inst., vol. 29, 
p. 441 (nec Z. mucronatus C. N. in Hedwig., vol. 37, p. 136 6). 
A very small, densely tufted plant, with abundant fruit, on setae only 
a few millimetres in length; leaves elliptic- lanceolate, narrowed at base 
and tapering to a narrow, acute point, wit e nerve generally excurrent 
in a sharp mucro, the cells rather large, pO as and nearly all somewhat 
elongate—not isodiametric—smooth or neon so, lax at extreme base ; 
nerve rather stout, carinate, smooth at b 
he cell-structure and the excurrent nerve will distinguish it from 
Z. prebaR ( t). 
Gathered in Auckland by D. Petrie, det. Brotherus. I have also a 
seiner : Iabelled “ N.Z. Travers,” ex herb. Mitten. I do not know of any 
er records ; the original gathering was made by F. Mueller i in Australia. 
8. Zygodon subminutus Broth. MS. in sched. sp. nov. (Plate IX, fig. 2.) 
Tenellus, caespitans, pallidus ; caules graciles, molles, vix 0-5 em. alti, 
dense radic osi, flexuosi surculis parvifoliis saepe intermixtis. Folia 
minuta, oblongo-lanceolata, aes vel subacuta, rarius subobtusa, perpellucida, 
marginibus planis vel leniter recurvis, integris ; costa valida, subpellucida, 
saepe flavida, ante apicem soluta, laevis. "Celiula ae pellucidae, plerumque 
inanes, irregulares (quadratae, subquadratae, rhomboideae, ovales), in- 
crassatae, laeves, ad basin minime mutatae. ?Dioicus. Seta 3-4 
gracilis, theca perminuta, ovalis, ells distincto nullo, sicca, plicata, operculo 
oblique rostellato, calyptra parva; spori minuti. Peristomium ? simplex 
aritig. ice e membrana distincta alta, laevis, pellucida, articulata 
"Bek —Thames, Auckland, July, 1896; leg. D. Petrie, det. Brotherus, 
No. 731. Comm. D. Petrie. 
A very distinet little ae with highly pellucid leaves more resembling 
noectangiu I have not been able to determine the inflorescence satis- 
Se siti is canahiy win ts the ‘tiie stems being mixed with the 
fertile o: 
EXCLUDED SPECIES. 
Z. cyathicarpus Mont. = Amphidium 
Z. integrifolius C. M. & Beck. = Amphidium cyathicarpum Set Broth. 
Z. compactus C. M.= Amphidium cyathicarpum (Mont.) Broth. 
OrtHotricuum Hedwig, Deser. musc., ii, p. 96 (1789). 
No genus of New Zealand mosses, perhaps, presents more difficulties 
than Orthotrichum. The plants themselves present problems sufficiently 
troublesome, but these have been aggravated by ‘their treatment by 
bryologists. In vol. fale toed of the Trans. N.Z. Inst., pp. 
pl. xxxv-xliii, R. Brown has described and figured forty new species. In 
