230 0.\ AXOIIOCLADA. 



ON ANOJTOCLABA, A NEW GENUS OF HEPATICiE, AND 



ON ITS ALLIED GENERA, ODONTOSCHISMA AND 



ADELANTHUS. 



Bir EiCHAUD SpatJCE, rn.D., F.R.G.S., &c. 



(Tab. 178, 179.) 



( Concluded from p. 203. ) 



I proceed to offer a character of the subgenus Jamesoniella, followed 

 by a full description of J. Carrijigtoni, and of the only other two 

 species I possess in good state for comparison with it. 



Jamesoniella, Spruce (J «(«y<?r?«rt«?»'iS subgenus). 

 Planta elatce, speciosas, cscspitosa), rosca^ pallidaove. Canles soepe sub- 

 erecti, parce fastigiatimque ramosi, Jlagellifen\ aj)ice pro more 

 circinato indfjinite o'escentes ; rami postico-laterales. Folia magna 

 alterna succuba lateral iter appressa (accumboitia), pro more basi 

 obliqua insiguiter docurrcntia, valde concava, intcgcrrima v. par- 

 cissimc ciliata v. denticulata. Cellulce parvulae v. fere minutaj, 

 subpellucida), ad angulos pidchre tncrassatce. Foliola nulla, v. 

 perrara niinutaque, nisi ad involucrum. Flares dioici : <? termi- 

 nales, innovatio>ie svffulti ; bractece hracteolaque interjecta plurilaci- 

 ntatce. FeriantMum jdus minus eniersum, upicem versus 6-10- 

 plicatum, ore parum denticulatum. Capsula, etc., baud visa. 

 Flores $ cauligeni, sa;pissime terminales ; Iradecc foliis consecu- 

 tiva) 2-3-andra?. 



1. JuTfGEKMANNIA (JaMESONIELLA) CaERINGXONI {Balf.). 



Adelanthus Carringtoni, Balf. MSS., Carringt. in Trans. Bot. Soc. 

 Edinb., 1870, p. 378; Nardia C, Ejusd. Brit. Hep., p. 27 

 (sine tempore ascripto) ; Kardia cvnpressa, vur y, Lindberg in 

 "Hep. Hibern." in Act. Soc. Sc. Eenn., 1875. 



Ilah. in montibus Scoticis, ubi primus omnium (uti vidcatur) eel. Gre- 

 Tille legit, circiter a. 1830, mecum aliisquc sub nom. " Junger- 

 mannia compressa " communicavit ; cl. Dr. J. Stirton tauien, 

 a. 18C6, primum bene distiuxit et pro specie propria salutavit. 



Folia ri X 1'6, f. basis dccurrens "5 ; cellula) gi^mm. 



Elata, ca3spitosa, pallida, virescens vel (in sicco) substraminea nitida. 

 Cault'8 3-4-pollicares, e basi brevi subnuda flagellifera erecti, 

 validi, ilexuosi, polyphylli, apicc plus minus circinato indefinite 

 crescentcs, subsimplices vol parce et subfastigiatim ramosi. Fami 

 foliosi assurgcntcs, radicellosi (flagella) devexi ; omnes rami e 

 foliorum axilla intra angulum posticum — nee imquam e caulis 

 facie postica extra foliorum bases — orti, ex quo " postico-late- 

 rales " appellandi. Radicellxc pallida; tcnues fasciculatce, ad 

 flagella subaphylla, necnou (sed rarius) ad caulem inftriorem pone 

 foliorum basin adveniunt. 



Folia caulis ramorumque infima minuta dissita subrotunda cuneatave, 

 2-^-ciliato-Jida ; sequuntur pauca sensim submajora iiicixo-spinosa 

 (spinis sub 5, sajpc ciliiformibus) foliis LoplwcolccB columhiccc baud 

 absimilia ; postha^c folia normalia majuscula, laxiuscule imbri- 

 cata, lateraliter sese accumbentia appressaque, toto margine cum 

 contrariis connivcnti-sicbcontigua, inscrtiono transversa, oblique 



