ON ANOIIOCLAD.V. 199 



reus (L.), Eypnum rutabulum (L.), and Bryumjulaceum, Sm. None 

 of these is ever found in equatorial plains, or indeed below 6000 feet 

 in the Andes ; and the three first are mere weeds, whereas of the 

 Hepatic;© only the Marchantia can be counted a weed, and most 

 of the others are rare and curious species, belonging to widely-separated 

 genera and tribes, and chiefly confined in Europe to the extreme 

 west. 



In gathering Mosses and Hepaticas on the forest-clad slopes of the 

 Peruvian and Quitenian Andes, I have often been forcibly reminded of 

 Killarney, far more than of the Pyrenees. There was the same exu- 

 berant growth of the plants themselves, and the frequent recurrence of 

 types — or even of the identical species — characteristic of the Moss- 

 vegetation of Killarney. The broad fronds of Dumortiera hirsuta, 

 looking as if cut out of green velvet, spread over rocks moistened by 

 the spray of waterfalls — sometimes associated with the identical 

 Trichomanes radicajis, and often with Hymenophylla that resembled 

 //. unilaterale — exactly as at Tore Waterfall. Add to this the broad 

 flakes of Bazmnice, Lepidozice, Lophocolece, and Plagiochilce ; the nume- 

 rous minute and curious Lejeuncm, of which the south-west of Ireland 

 can show more species than all the rest of Europe and Northern Asia 

 put together ; the abundance of delicate nerveless- leaved Hypna, re- 

 calling those elegant species, H. demissum and micans, discovered by 

 "Wilson at Killarney ; other more robust Hypna, allied to H.flagellare ; 

 HookericB very like the Irish H. Icetevirens ; beds of luxuriant Bar- 

 tramice ; exposed rocks sprinkled with tufts of Grimmia ovata, or en- 

 tirely invested with Hedwigia ciliaris and imherhis, the latter first 

 described by Smith, from Miss Hutchins's GlengarifF specimens, and 

 afterwards found in the British Isles only on Snowdon by Wilson — 

 in the island of Ostercie by Blytt — in the equatorial Andes gathered 

 only by myself and Lindig, although I had previously got it in the 

 Pyrenees — and these are the only localities known. This extraordinary 

 accordance between regions so far separated is (to my mind) far from 

 sufficiently explained by the warm Gulf Stream that laves our shores, 

 or by any oscillation of the eartti's axis of rotation possible within 

 the actual limits of the obliquity of the ecliptic, or even by the sup- 

 posed existence at some remote period of continuous land between 

 Europe and America ; but I reserve (for the present) my speculations 

 about its origin, and leave my readers at liberty to theorise for them- 

 selves. 



2. Adelanthcjs decurvus, Mitt. MSS. 



Hab in montibus Guayrapurina et Campana Andium Peruvianorum, 



alt. 800-1000 m. ad arbores vetustas, legit R. S. pi. (^ , a. 1855 ; 



insula Antillarum Dominica legit Guilding, pi. j^ et $ (hb. 



Wilson et Carrington). 

 Folia 1-2 X -85, 1-0 x -75. -8 X "65 ; c. ;,-^ ; bractete ? I'O longae ; 



per 2-9 x M, 1-3 X 09; br. ^ -4 longa; ; brlse. '25 X '125 ; 



anth. -125 mm. 

 Ccespites lati, ex albido flavicantes. Caudlces prostrati, nigrescentes, 



tenues fragiles intricato-ramosi subaphylli subtus radicelloso- 



tomentelli, caules ascendentes et flagella demissa proferentes. 



C'aules l-l|-pollicares, subrufi, simplices parcissimeve ramosi, 



