20 CRYPTOGAMIA ANTARCTICA. [Auckland and 
cution. The origin of these hairs in no way argues the absence of paraphyses, which those authors observe, and 
which are sufficiently perceptible though of only half the diameter of the hairs themselves, these are perfectly straight 
and inserted near the base of the vaginula. 
1. Potyrricuum magellanicum, Hedw.; caule ramoso, foliis rigidis patentibus recurvis basi ovatis 
vaginantibus deinde subulatis serratis, theca inclinata v. horizontali oblonga semi-cylindracea supra plana, 
operculo conico-rostrato, calyptra glabra. P. magellanicum, Hedw. Sp. Musc., p. 101. t. 20. f.1, 2. Catha- 
rinea, Brid, Bryol. Univ. vol. ii. p. 106. (Tas. LIX. Fig. III.) 
Has. Lord Auckland's group ; moist ground, amongst grass near the tops of the hills. 
Theca junior erecta, matura inclinata, tandem horizontalis, basi subgibbosa, fusco-brunnea. 
In the peculiar form of the capsule (ill represented in Hedwig's figure) and in general habit, this moss bears a 
strong similarity to Dawsonia; Menzies, who describes the theca as subcylindrical in the Linnean Transactions 
(vol. iv. p. 71.), is the only observer who has remarked its peculiar structure. The naked calyptra allies this species 
to the Catharinee of Bridel, whence some may include it under the division called Pogonatum by Bruch and Schim- 
per ; on the other hand, the absence of an apophysis will connect it with Oligotrichum. From Polytrichum of Bruch. 
and Schimper, it differs in wanting proper angles on the capsule, and from 4tricham, of the same authors, in having 
the inner or inverted portion of the sporular membrane surrounding the columella 4-winged. 
This moss is found in as low a south latitude as Brazil, from whence we have seen specimens collected by Raddi 
and named Catharinea pseudo-polytrichum, and there are others in the Herbarium formed by Mr. Gardner. It varies 
in the length and somewhat in the disposition of the leaves, which are sometimes widely spreading and squarrose, 
but in the specimens now under consideration, they are shorter than in others from Cape Horn. The seta is also 
of variable length. 
PrarE LIX. Fig. III.—1, a specimen of the natural size; 2 and 3, leaves; 4, young theca; 5, mature ditto ; 
6, teeth; 7, transverse section of theca; 8, calyptra :— magnified. 
17. CONOSTOMUM, Swartz. 
Peristomium simplex; dentibus sedecim, in conum persistentem conniventibus, apicibus subulatis. Calyptra 
brevissima, conico-subulata, stricta, latere fissa. — Teca subineequalis, exannulata. 
1. Conostomum australe, Swartz; caule erecto valde ramoso, ramis fastigiatis obscure pentagonis, 
foliis densis arcte imbricatis lineari-lanceolatis acuminatis supremis longe piliferis, theca cernua subrotun- 
data v. ovato-globosa. C. australe, Swartz in Schrader, New Bot. Journ. vol.i. pt. 8. p. 31. t. 6. Schwaeg. 
Suppl., vol. i. pt. 1. p. 80. and pt. 2. p. 108. t. 130. Brid. Bryol. Univ. vol. i. p. 152. 
Has. Lord Auckland's group and Campbell’s Island; on moist rocks, at a considerable elevation. 
Conostomum has recently been united with Bartramia, by Bruch and Schimper. The genus is still an emi- 
nently natural one. It is not upon the most evident characters, such as the various species of Polytrichum punk 
however constant they may be, that natural genera can in many cases be founded. 
18. BARTRAMIA, Zedw. 
Peristomium duplex; exterius dentes sedecim, inflexi; interius membrana carinata, in lacinias sedecim integras 
bifidasve fissa, ciliis interjectis v. nullis. Calyptra cuculliformis. Theca globosa v. ovato-globosa rarius elongata, 
ineequalis ; ore obliquo, exannulato.—Philonotis et Bartramia, Brid. Bryol. Univ. vol. ii. p. 15 et 32. 
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