GLE1CHENIA. 



135 



GLEICHENLE. J. Smith. 



Having globose or pyriforrn sessile sporangia, opening 

 vertically; ring transverse. 

 Sori punctiform and naked. 



GENUS I. 



GLEICHEN1A. Brown. 



A most remarkable and at the same time handsome group 

 of Ferns, making (under successful cultivation) magnificent 

 plants. The most aristocratic-looking genus of Ferns. The 

 fronds varying from ten to seventy inches, and being dichot- 

 omously branched. 



Veins forked, either simply or pinnately; venules free, the 

 exterior one bearing sporangia on its apex. Sori punctiform 

 and naked, non-indusiate, superficial, or immersed, consisting of 

 but few spore-cases, which are sessile and deciduous. 



Sir W. J. Hooker describes the following: — 



Speluncae, Brown, New South 



Wales. 

 Rupestris, Brown, New South 



Wales. 

 Alpina, Brown, Tasmania. 

 Polypodioides, Smith, South 



Africa. 

 Microphylla, Brown, Tasmania. 

 Dicarpa, Brown, Tasmania. 

 Semivestita, Labillardiere, New 



Caledonia. 

 Hecistophylla, A. Cunningham, 



New Zealand. 

 VOL. VIII. 



Longissima, Blume, Java. 

 Vulcanica, Blume, Java. 

 Glauca, Swartz, Japan. 

 Gigantea, Wallich, Nepal. 

 Bancroftii, Hooker, Jamaica. 

 Excelsa, J. Smith, Luzon. 

 Flabellata,.Z?ra#w, New Holland. 

 Tenera, Brown, Tasmania. 

 Cunninghami, Heward, New 



Zealand. 

 Pedalis, Kaidfuss, Chili. 

 Cryptocarpa, Hooker, Chilce. 

 Acutifolia, Hooker, Patagonia. 

 u 



