DICRANACEAE. . 85 
B. TRICHOPHYLLI. Some leaves, especially the comal, ending in a distinct hyaline 
r-poin 
1. Hair-point abruptly re 
ree itt 
e nearly eth at back 9* pudicus, 
b. k of nerve with alternate ridges and furrows (best seen in ' section) 
9. introflexus, 
. Hair- eens ~ abruptly reflexed. 
. Nerve half width of leaf-base or more, usually ; hair-point sh 
Aue cells ane supra-alar all rectan ace mse leaves ae Saw te 
ape nerve 2-3 width o of base us 
* Alar cells inconspicuous ; nerve 3-4 width of base 4. peck var. 
b. Nerve usually less than half width of leaf- oe Hair- dpe often long. 
* Alar cells large, supra-alar rectangular, leaves longly ta — 8 
ie aa 
** Alar aa? indistinct, supra-alar next nerve soon becoming a a 
2 id, marginal very thin and narrow, forming a yalin 
hand passing obliquely upwa : aay 5! insititins. 
: Subgenus II. Patrnocrasprs Lindb. 
Nerve-section with median Deuter and both ventral and dorsal stereid bands 
10. arboricola, 
Subgen. CAMPYLOPUS. 
A. Atrichi. 
1. Campylopus Holomitrium (C. M.) Jaeg., Adumbr. i, 135 (1870-71). 
[Plate VII, fig. 7.] 
us fk spsto ares C. M., Syn. i, 389 (1848). Campylopus 
pillaceus H. f. & W. in Lond. Journ. ae 1844, p. 543 (nec 
C. bapiliosons (Brid.) Jaeg., Adumbr. ii, 429). Dicranum de. 
tractum C. M. in Hedw., xxxvi (1897) rs p- 350. Campylopus 
distractus Par., Ind. Suppl., p. 91. Campylopus a 
M. in Abhandl. d. Natur. Ver. Bremen, 1900, p. 
I have pape se the types of C. Miiller’s Dicranum PheRE and 
under 
his species is omitted from the “ Handbook of the New Zealand Flora,” 
no doubt by an oversight. It is a good species, which, apart from the 
sporophytic characters, may be recognized by the flexuose, finely setaceous 
leaves, which are usually rather distant, and by the character of the leaf- 
base, which, however, is somewhat difficult to define ; the broad mae 
the alar cells usually ighly coloured (or hyaline) and numerous, but 
greatly enlarged, and especially the supra-alar cells remaining « aid 
wide (irregularly quadrate, &c.), aahitally to the base, particularly con- 
tribute to this characteristic appearance of the leaf-base (ef. Plate VII, 
fig. 7 
. C. Holomitrium is probably one of the more uncommon species; in 
fact, apart from the — Bay of Islands gathering by Sir J. D. Hooker, 
all the specimens I have seen have come from the volcanic district of Taupo, 
in the North Island, excepting that of C. distractus C. M., the place of origin 
of which is unknown. C. Miiller, by the way, redes cribed_ this -plant as 
C. distractus in the same publication as C. lonchochaete, “forgetful of the fact 
that he had already published it as Dreranum distractum in the Symbolae 
