GRIMMIACEAE. 185 
being strongly circinnately enrolled ne the tip, so esse the Skeir are quite 
hidden and the stems terete, while at the same time the enrolling is so 
regular and uniform that the ag Boscia on ihe bennes 3 is generally 
brought out rather clearly. The seta is short, the capsule more strongly 
plicate than in most of the spae 
M. gracile appears to be a common species. 
10. Macromitrium Hectori Mitt. ex Hook. f., Handb. N.Z. Fl, p. 430 
(1867). 
A little-known species gathered, so far as I know, only in the original 
station, Otago, by Hector and Buchanan. (A specimen so named, and 
distributed by Beckett, coll. T. G. Wright, from Canterbury, is only 
M. prorepens.) It is rather robust, and is perhaps allied to M. longirostre, 
of which it has the plicate capsule; golden brown, somewhat glossy, the 
leaves somewhat undulate when moist, very densely set, closely incurved 
i e cells 
are ; 
basal strongly incrassate and with a rather curious and complicated 
thickening at the ivy ted lower ends. The leaf-apex is peculiar among 
M. longi- 
he pacaiacbadsiiad of these three ‘of characters for the sabe part 
constitute the specific diteaniaee. The plants are mostly slender, with 
short branches, small oval capsules, and small leaves, which scarcely vary 
out 
generally shortly hpnaionate the upper cells being sharply differentiated 
from the lower, which occupy a large proportion of the leaf, and are pellucid, 
paper (Bull. Torr. Bot. Club, 42, 97, sqq.). M. prorepens and - . Lingulare 
have them moderately large (7-11), obscure by reason of two or three 
distinct but not high papillae on each. In the other species the celia are 
distinctly larger (9-144), each cell crowned by a high, often conspicuously 
spi illa, which does not render them obscure, but, on the 
contrary, they are very clear and distinct. 
. Macromitrium prorepens ye beste, nee li, p. GZ, t.:171 
Ty Fl. N.Z., ii, 79; Han Z—¥i., 
Syn. Orthotrichum prorepens es a hee. t. 120 seer 
acromitrium submuci ronifolium Hpe. & C. M. in 
eee p. 499. ? M. coarctatulum C. M. in Hedwig. vol. “31, 
53. SM pidiince C1, op a p. 157. 
SNe from M. ligulare by the sparsely hairy calyptra; from 
all the subsequent species by the .maller, obscure upper areolation. 
From the descriptions I think there can be no doubt of the identity 
with M. prorepens of C. Mueller’s two species placed in the synonymy. 
It is common throughout New Zealand. 
ye 
