Hookeria .] 
IV. MUSCI. 
495 
species, which Mitten describes from two stems seDt by Dr. Knight ; he observes that the 
very minute cells in. diam.) give a more obscure appearance to this moss than to any 
of its allies. 
10. H. microcarpa, Hook.f. and Wils. FI. N. Z. ii. 123. Stems 1-5 in. 
long, vaguely branched ; branches broad, compressed. Leaves large, pale 
green, whitish in the middle, distichous, imbricate, appressed when dry, ob- 
ovate, obtuse ; margin not thickened, quite entire ; nerve 0 ; cells large and 
pellucid near the centre, smaller towards the margin ; perichaetial minute, 
ovate-lanceolate, Fruitstalk ^ in. long. Capsule small, erect or cernuous, 
ovoid ; operculum short, beaked. Calyptra fimbriate at the base. Inflores- 
cence dioecious. — Ilypnum , Hedwig, Sp. Muse. t. 59. Fterigopliyllum, 
Bridel. 
Abundant throughout the Northern and Middle Islands, Cunningham, etc. (Tas- 
mania.) 
§ III. Pterigopiiyllum. 
11. H. quadrifaria } Smith ; — FI. N. Z. ii. 124. Very large. Stems 
suberect, 2-10 in. long, sparingly branched ; branches compressed, -§■ in. 
broad. Leaves pale green, large, whitish when old, loosely imbricate, disti- 
chous, vertical, obliquely broadly obovate or subrhomboid, obtuse ; margin 
not thickened, denticulate (quite entire on barren shoots) ; dorsal suborbi- 
cular ; nerve forked, vanishing ; cells large, lax, hexagonal; perichaetial small, 
ovate. Fruitstalk 1 in. long. Capsule pendulous, oblong, tubercled ; oper- 
culum conical, with a nearly straight subulate beak. Calyptra small ; base 
not fimbriate, lacerate. Inflorescence dioecious. — Hook. Muse. Exot. t. 109 ; 
Schwaegr. Suppl. t. 162. 
Throughout the Northern and Middle Islands: abundant, Menzies, e tc. ; in dark 
woods, on the ground. 
12. Sri. denticulata, Hook. f. and Wils. FI. Antarct. i. t. 62. f. 2. 
Stem suberect, sparingly branched, 1 in. high ; branches compressed, subin- 
curved, rigid when dry. Leaves shining, pale green when fresh, opaque black 
crisped and fragile when dry, loosely sub-4-fariously imbricate, lateral disti- 
chous, oblong, ovate or obovate, obtuse or subacute ; margin toothed, not 
thickened; dorsal orbicular ; nerve short, vanishing, 2-fid ; cells large, hexa- 
gonal; perichaetial small, ovate. Fruitstalk ^ in. long, stout, red. Capsule 
cernuous or pendulous, oblong, narrowed at the base ; operculum short, beaked. 
Calyptra glabrous, coriaceous, not fimbriate at the base. Inflorescence dioecious. 
Xiord Auckland’s group and Campbell’s Island: in wet places, J. D. H. (Fuegia 
and Falkland Islands.) 
13. H. robusta, Hook.f. and Wils. FI. N. Z. ii. 124. t. 93./. 5. Very 
large; stems 1-4 in. high, suberect, rigid, sparingly branched; branches 
flattened. Leaves pale yellow-green, subglaucous, slightly undulate when dry, 
distichous, vertical, coriaceous, ovate-oblong, obtuse ; margin not thickened, 
toothed; nerve purplish, reaching to the middle; dorsal erect, appressed, 
obovate. Fruitstalk f in. long, smooth. Capsule pendulous, ovoid ; oper- 
culum very short. Calyptra glabrous. Inflorescence dioecious. 
Northern Island : moist woods, in the iuterior, Cotenso, etc. 
