CATALOGUE OF CRYPTOGAMIC PLANTS. 53 
The slender stems, with the closely appressed leaves, give this species 
a different look from its near ally, D. Funkii, C. Muller; Campylopus 
fragilis, Bryol. Europ. The capsule is much curved, and has some re- 
semblance to that of D. heteromalium in form. 
16. Dicranum erectum, Mitten, MSS.; elatum laxe cæspitosum dicho- 
tome ramosum apice falcatum lutescens inferne fuscescens, foliis 
caulinis secundis falcatis e basi lata sensim longissime acuminatis 
capillaceis concavis lævibus, basi cellulis alaribus conspicuis, peri- 
chætialibus basi convolutis, theca in pedunculo flexuoso erecto ob- 
longo lavi, operculo conico subulato, *ealyptra basi fimbriata." 
—Thysanomitrium macrophyllum, Wiis. in schedula. 
This species is allied ta D. uncinatum and D. denudatum, but is a 
far larger moss; in size it has some resemblance to a slender state of 
D. majus; the calyptra is not present in any of the specimens I have 
seen, but Mr. Wilson informs me that it is fringed at the base. 
17. Pilopogon gracilis, Brid. vol.i. p. 519. Didymodon gracilis, Hook. 
Muse. Exot. t. v. 
I was at first inclined to consider this distinct from P. gracilis, sup- 
posing the capsule to be erect as figured in Musc. Exot., but Mr. Wil- 
son observes that the capsules in the original specimens are not exactly 
as figured. 
18. Idem. 
b. Dicranum Zæve, C. Muller, Synops. Muse. Frond. p. 409. Cam- 
pylopus levis, Tayl. Lond. Journ. Bot. 1846, p. 47. 
19. Leptotrichum crinale. Didymodon crinalis, Zayl, Lond. Journ. 
Bot. 1848, p. 280. 
20. Trichostomum cylindricum, C. Muller, Synops. Muse. Frond. 
p. 586. Didymodon calyptratus, Tayl. Lond. Journ. Bot. 1848, 
p. 188. ; 
21. Barbula Australasie, Hook. et Grev. + 
Accords with New Zealand and Tasmanian specimens ; the peri- 
stome of this moss is scarcely at all twisted when the operculum is first 
removed, but soon becomes slightly so; the structure of the teeth is 
truly that of Barbula, and very different to that of Trichostomum. 
22. Trichostomum densjfolium, Mitten, MSS.; monoicum, dense cæs- _ 
pitosum albido-tomentosum luteum inferne fuscescens, foliis pa- - 
tenti-recurvis tortilibus squarrosis late lanceolatis, nervo sub apice - 
evanido, margine e basi ad medium reflexo, apicem versus serrula- - 
