94 FLORA OF NEW ZEALAND. [Musci. 



2. Eremodon octoblepharis, Hook. ; foliis obovatis longe acuminatis subpiliferis integerrimis, capsula 

 clavata erecta, peristomii dentibus octo geminatis, calyptra laevi. — Hook. Muse. Exot. I. 167. Scliwa.gr. 

 Suppl. t. 129. M. Antaret.p. 123. 



Hab. Throughout the Islands, common ; on clay ground, etc., Lyall, Sinclair, J. D. II. 



Found also in Tasmania, Australia, and the Antarctic Islands. Distinguished from its allies by the entire leaves. 

 — Not 1 inch in height. Peristome with eight double teeth, perforated down the middle, but seldom cloven, re- 

 flexed when dry ; columella in that state slightly prominent. Nerve of the leaf sometimes excurrent, or continuous 

 with the narrow setaceous point. 



S. Eremodon purpurascens, Hook. fil. et Wils.; foliis patulis obovatis acuminatis evanidinerviis api- 

 cibus recurvis, capsula elliptico-oblonga microstoma, apophysi obconica angusta, operculo conico. — El. An- 

 tarct.p. 123. t. 57./. 6. 



Hab. Northern Island : Auckland, Colenso, Bolton, Knight. 



A native of Campbell's Island. 



Tribe XII. Polytriche^;. 

 Gen. XL. POLYTRICHUM, Bill., Linn. 



Peristomium simplex. Denies 32-64, interdum 16, breves, ligulati, inflexi, duriusculi, e filis inarticu- 

 iatis duplici lamina dispositis contexti, haud hygroscopici, epiphragma inter apices dentium sustentum. Ca- 

 lyptra parva, cuculliformis, plerumque indumento villoso vestita, interdum nuda. 



A very natural and peculiar group, having the short almost horny teeth attached to a hemispherical distension 

 of the summit of the columella, which in the ripe capsule forms a membranous tympanum, so that the sporules can 

 only escape through interstices between the numerous teeth. — Leaves with vertical lamella? on the upper side, 

 attached to the nerve. — For the sake of brevity the genera given in Bryol. Europ. are here treated as subgeneras. 



Subgenus 1. Atbichtjm, P. Beauv. — Calyptra anguste cucullata, elongata, nuda, apice tantum spinulosa. Cap- 

 sula cylindrica. Operculum tenuirostre. Folia lanceolato-ligulata, nervo angusto, puree lamellosa, sub- 

 fiaccida. 



1. Polytrichum (Atrichum) angustatum, Hook.; dioicum, gracile, foliis elongato-lanceolatis subpaten- 

 tibus anguste limbatis superne spinoso-serratis siccitate crispis, capsula suberecta tenui-cylindracea, operculo 

 tenuirostri. — Hook. Muse. Exot. t. 50. Atrichum, BrucJi et ScJdmp. Bryol. Europ. 



Var. ; setis aggregatis, calyptra longiore angustissima. 

 Hab. Northern Island : shaded woods ; Huiarau, Colenso. 



This species is found in Europe and in North America.— Above 3 inches high. Seta | inch or more long, often 

 three together. Capsules slightly curved, brown. Leaves undulated and crisped when dry, serratures in a double 

 row. Calyptra longer than the capsule, very slender, spinulose at the apex. Operculum with a long, slender, inclined 

 beak. 



Subgenus 2. Oligotbjchum, Be Cand., Bruch et Schimp. — Calyptra apice papillata v. snbpilosa, cucullata. 

 Capsula in pedicello tenaci ovato-cylindrica. Caules rigidi ; foliis brevibus, solidis, late costatis ; floribus 6 

 rosulatis ; operculo brevirostri. 



2. Polytrichum (Oligotrichum) tenuirostre, Menz. ; foliis patentibus oblongo-lanceolatis obtusiusculis 

 integerrimis parce angusteque lamellatis siccitate incurvis, seta longissima firma, capsula ovato-oblonga 

 suberecta, operculo tenuirostri. — Hook. Muse. Exot. 



Hab. Middle Island : Dusky Bay, Menzies, Lyall. 



This species has been collected very sparingly.— Stems short, i inch long. Seta from li to 3 inches long, very 



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