200 THE VOYAGE OF H.M.S. CHALLENGER. 



Distichophyllum fasciculatum, Mitt. (PI. LIII.) 



Distichophyllum fasciculatum, Mitt, in Journ. Linn. Soc. Lond., xv. p. 71. 



Monoicum. Caulis debilis, erectus, fasciculatim ramosus, ruber. Folia compressa, 

 caulina omnia conformia, lateralia patentia, oblongo-ovalia, obtusa, apiculo brevissimo 

 ssepius obsoleto terminata, planiuscula, nervo tenui ultra medium evanido, triplici serie 

 cellularum angustissimarum marginata, integerrima, cellulis hexagonis limpidis areolata ; 

 perichaetialia erecta, interna late ovalia, convoluta, apice acuta, subserrulata, immarginata, 

 enervia. Theca in pedunculo elongato rubro lsevi erecta, ovalis, collo sensim angustato. 



Caulis uncialis biuncialisve cum foliis lineam latus. Folia pallide strauiineo-fusca, sicca 

 vix compressa marginibus flexuosis. Pedunculus unciam brevior. 



Like Distichophyllum sinuosum, but with cells twice as large and an erect capsule. 



Marion Island. — Growing in a tufted manner intermixed with Jungermannia 

 colorata — Moseley. 



This species agrees very nearly with Distichophyllum amblyoplxyllum, Mitt. {Hookeria, 

 Hook. f. et Wils.), from New Zealand, but differs in the presence of a minute apiculus to its 

 leaves, which have also a shorter nerve, and its capsule is nearly erect and not pendulous. 

 It resembles also Distichophyllum sinuosum {Hookeria, Hook. f. et Wils.) from Tasmania. 

 Distichophyllum krausii (Lorentz, Mniadelphus) from Chili, has a longer nerve and no 

 apiculus ; all these species are very similar in size and in the colour of their foliage, and 

 with Distichophyllum microcarpum {Hookeria, Hook. f. et Wils.) of New Zealand, form 

 a small group of species agreeing in tbe rounded apices of their leaves, and in having 

 their capsules supported on a smooth fruit-stalk. 



Distichophyllum imbricatum, Mitt. (PI. LIII.) 



Distichophyllum imbricatum, Mitt, in Journ. Linn. Soc. Lond., xv. p. 71. 



Caulis rubro-fuscus, fasciculatim ramosus, erectus. Folia concava, fere teretiuscule 

 imbricata, ad ramorum apices in gemmam subacutam congesta, ovali-oblonga, acuta, 

 apiculo parvo terminata, duplice serie cellularum angustissimarum marginata, nervo 

 angusto ultra medium evanescente, cellulis limpidis hexagonis areolata. 



Caulis semiuncialis cum foliis vix compressis lineam latus. 



Similar to Distichophyllum flaccidum, but with acute leaves which at the apices of 

 the stems are imbricated in a cuspidate manner. 



Marion Island. — In a scattered manner amongst Gottschea carnosa — Moseley. 



In the specimens of this moss the stems have leaves imbricated equally on all sides, 

 but they are too scanty to show whether this be a constant character. The outline of the 

 leaves is nearly that of Distichophyllum zollingeri, Bry. Jav., and of Distichophyllum 

 adnatum, Mitt. (Fl. N. Zeal., t. 93, 04) ; they are of a dull brownish green, with their cells 

 very iridescent. 



