REPOKT ON THE BOTANY OF JUAN FERNANDEZ AND MASAFUERA 89 



This species in its habit is intermediate between the species with and without stipes, 

 some of its fronds being stipitate, others are as if indefinite ; the foliaceous expansion is 

 irregularly sinuate. In this particular it approaches the Symphyogyna sinuata (Sw.), 

 which extends from the West Indian Islands to South Chili, whence also have come speci- 

 mens of Symphyogyna hymenophyllum. 1 



Marchantia berteroana, Lehm. et Lindb. 



Marchantia berteroana, Lehm. et Lindb. in G. L. et N. Synop. Hepat, p. 525. 



Juan Fernandez. 



Originally described from Bertero's specimens. It resembles Marchantia polymorpha 



when in that state in which the dark vein-like marking in the middle of the fronds is 

 wanting, but is more robust than usual in British forms. 



Also in Chili. 



FUNGI. 



No fungi were collected in Juan Fernandez by Mr Moseley, or at least none came to 

 hand. 



LICHENES. 2 

 Leptogium azureum, Mont. 



Leptogium azureum, Mont., Cuba. Crypt., p. 11-1, et in Gay, Fl. Cb.il., viii. p. 224 ; Crombie in Journ. 

 Linn. Soe. Lond., xvi. p. 223 ; Nyl., Synopsis Licb., i. p. 125. 



Juan Fernandez. Moseley. 



Nylander {Joe. cit.) places this as a variety of the almost cosmopolitan Leptogium 

 tremelloides. 



1 The genus Umbraculum, Gottsche, Bot. Zeit., 1861, p. 1-3, and Ann. Sci. Nat., 5ieme. s^r., t. 1, 1865, 

 p. 180, of which the type is Jungermannia flabellata, Hook., Muse. Exot., t. 13, is represented in the Bogotian 

 Andes by Umbraculum andinum, Mitt., n. sp., stipite in frondem semicircularem flabellatim expanse, divisiunibus 

 tri-quaterne dichotomis integerrimis, squama involucrale rotundata denticulata, calyptra cum perianthio cylindraco 

 basin versus concreta. Stipes L50 cm., ala nulla, frondo 1 cm. lata divisionibus 1-1 -50 mm. latis, perianthium 

 2 mm. longum infra squamam involucralem carnosulum. 



Other species referred to this genus are Umbraculum mulleri, Gottsche, from Australia; Umbraculum Ivpto- 

 poda, Tayl., from New Zealand; Umbraculum decipiens, Mitt. (Steelzia), from Ceylon. All these differ from 

 Symphyogyna in having a perianth, as in Palavicinia = Steelzia, G. L. et N. Synop. Hepat., p. 785. In another 

 Andean species, Umbraculum erytliropus, Gottsche in Ann. Sci. Nat., 5ieme. s6r., t. 1 (Mittenia). 



The calyptra being concrete with the perianth towards its base, was thought by Gottsche to be worthy of 

 distinction as a generic character ; but as this condition certainly occurs in some others of the species referred to 

 Umbraculum, it seems hardly of sufficient importance. Umbraculum erytliropus, in its fronds having their Lobes 

 dentate, nearly resembles Symphyogyna hymenophyllum, Hook. 



2 Limited to those collected by Mr Moseley. 



(bot. CHALL. EXP. — PART III. 1S84.) C 12 



