LEUCOBRYACEAE. 97 
which I have of L. eeteat anegerd Broth. through the kindness of Dr. G. Roth, 
that that plant is simply a straight-leaved form of L. speirostichum (or, as 
be Broth. The only pletion cor characters mentioned oy Bro eres 
(in Oefv. af Finska Vet. Soc. Foerh., lv, 159) from ZL. brachyphylium see: 3 
L. candidum) are “ fol. pentastiche dispositis, strictis, latius limbatis. 
the diagnosis the hyaline border is described as “‘a seriebus cellularum = 
formato ’’; but in forms of L. candidum it is quite usual to find the border 
as ee as that even in the upper part of the leaf. 
to sum up, no hesitation in concluding that L. pentastichum 
is identical with L. speirostichum; and {I think it highly probable that 
L. pentastichum is a seriate form of L. aduncum Doz. & Molk., and that that 
species will have to be reduced to L. candidum (Brid.). On ‘the last point, 
however, I do not feel well qualified to judge ; and, as there is some differ- 
ence of general habit and appearance between the Javan L. aduncum and 
the various forms of the Australasian plant, I have left the question to be 
decided by others with a better knowledge of the Javan plants.* 
he New Zealand species will then stand as follows :-— 
Handb. N.Z. FI. 
yn. Dicranum Sere Brid., Bryol. univ., i, 409 (1826). Dicranum 
brachyphyllum Hornsch. in Sieber M. Nov. Maes (nomen). 
Leucobryum brachyphyllum Hampe apud C. M. .» Xvi 
317 (1843), nomen, et in Linn., xviii, 688 (1844). L spinidorsum 
C. M. in Hedw., xxxvi (1897), p- ‘$31.7. L. enterruptum C. M., 
MS. in Herb., et Gen. Muse. Fr., p. 81 (nomen). L. brace hypus 
C. M., MS. in Herb., et Gen. Musc. Fr., p. 81 (nomen). 
Leucobryum candidum tesa H. £.4.W.. Fl. WZ... 2,. 64. (1895) ; 
» p. 40 
Var. majus Jaeg., Adumbr. i, p. 159 (1871-72). 
Syn. L. laticaule C. M. in Hedw., xxxvi (1897), p. 331. 
Var. pentastichum (Doz. & Molk.) Dixon comb. nov. 
yn. L. pentastichum Doz. & Molk., Bry. jav., i, 16, t. xv. L. speiro- 
stichum ©. M., MS. in Herb., et Gen. Muse. Fr., p. 80 (nomen). 
L. strictifolium Broth. in Oefv. af Finska Vet. Soc. Foerh., lv 
(1898), p. 159. 
L. candidum is widely distributed throughout the Islands, most frequently 
sterile. The var. majus, a robust plant with long simple branches, an 
large, long, narrowly pointed Seavey is also widely dotbuted, and 
by insensible degrees into the type. The var. pentastichum has a similar 
distribution, and is a very distinct plant in its best-marked condition, but 
the seriate position of the leaves is at times poorly marked, and it is some- 
times not easy to separate the type and variety. 
The smaller, short-leaved forms of L. candidum, which it might be reason 
able perhaps to separate off as a variety in the opposite direction to the 
* Since the above was a3 I learn that a paper has appeared by Thériot, which 
I have not seen, in Bulletin de la Société de Genéve, vol. xii (1921), on Le probléme me du 
Leucobryum candidum,”’ which should be consulted. 
