Muscti ExorTtic:.—Menziesiant. 
HOOKERIA PENNATA. 
Hookeria caule erecto simplice, foliis bifariis verticali- 
bus ovato-lanceolatis serratis enervibus, stipulis orbi- 
culatis mucronulatis serratis, seta brevi, capsula ovata 
erecta. (Tas. CLXIII. 
Hookeria pennata. Smith in Linn. Trans. v. 9. p. 277. 
Pterigophorum pennatum. Brid, Meth. Nov. Muse. p. 149. 
Schwaegr. Suppl. v. 2. p. 160. 
Cyathophorum pteridioides. Beauv. Etheog. p.5 
Leskea pennata. Lalill.' Nov. Hoil. v. ?: p. 206. 1. 253. 
ppg bulbosum. Hedw. Sp. Muse. p.43. t.6.f.1—5. 
Has. Nova Hollandia. pak Takikesdios In sinu Dusky Bay 
dicto, ‘Nova Zeelandia. D. Menzies. Insula Van Diemen, 
. Bro 
Radix caren tomento fusco densissime obsita. Cazles digitales 
fere ad palmarem, simplices (vel rarius divisi, Ladill.), inferne 
nudi, nigri, nitidi. Folia flavo-viridia, bifaria, disticha, verti- 
ca lia, laxe ciniwain, horizontalia, ovato-lanceolata, inequila- 
tera, subpellucida, tenuissime reticulata, serrulata, basi obso- 
lete uninervia, Stipule foliis triplo minores, orbiculate, 
cauli eee denticulato-serrulate, enerves, apice mucro- 
nulat Perichetialia lanceolato-subulata, enervia, Pert- 
chetium in axillis stipalartan, magnum, ovatum, fuscum, cor- 
poribus pistilliformibus obsitum, Se¢a stipula duplo triplove 
longior, curvata, basi incrassata. Capsuda ovata, fusco-fer- 
ruginea, minute reticulata, erecta, vel ob sete curvaturam pau- 
lo inclinata alyptra campanulata, inferne rE mar- 
gine integerrima, apice stylo terminata percu e basi 
conico acuminatum, acutissimum. Peristomium Hypal. 
a any two authors are agreed as to the genus to which 
this eH moss belongs. Those who have referred it to Leskea 
have done so without understanding the true structure of the 
peristome, which is most decidedly that of a Hypnum, in which 
genus it would therefore be placed by those who do not regard 
the calyptra as forming an essential generic character. To me 
it appears rightly eg with Hookeria, having all the marks 
of that genus ; = so Bridel seems to think, for his Péerigophyt- 
lum ‘is precisely our Hovkeria under another name. 
After the frujtstalks have fallen, the bulbous perichetium re- 
mains in the axil of cet ls and may at first sight be mis- 
taken for the male flow 
Fig. 1, plant, front, a Fig. 2, ditto, back, view, nat, size. 
Fig. 3, leaves and s stipule. Fig. 4, stipule. Fig. 5, young cap- 
sule with its perichzetium and calyptra. ot 6, capsule and 3 
richetium. Fig.7, perichetial leaf. Fig. 8 , calyptra, Fig. 9 
operculum,—magn, 
