﻿Evans : Hepaticae of Southern Patagonia 411 



There has been so much confusion regarding this characteristic 

 plant of southern Patagonia that it seems wise to give a brief re- 

 view of the literature concerning it and to emphasize again its most 



important peculiarities. 

 prehcnsilis dike all in I 



Jungermannia 



parts — a diagnosis in Latin, and a somewhat fuller account in Eng- 

 lish with comparative remarks. In the Synopsis Hepaticarum we 

 nnd the diagnosis simply repeated and the English account trans- 

 ited into Latin, so that this description contains nothing new and 

 is essentially like the original. In the Flora Antarctica again, what 

 is practically the same description reappears but this time is sup- 

 plemented by a figure of the plant with slightly enlarged details. 

 Jhis original description is, of course, incomplete and the part 

 which applies to the vegetative characters of the plant, particularly 

 so - The following extracts include all the points brought forward 

 about the thallus : " Fronde laxe caespitosa erecta incurva alata ; 

 °bis alternis secundis pinnatis, pinnulis planis linearibus crassiner- 

 vus ; " « Frondes loosely tufted, with broad hooked tips, the stem 

 at ' "rown, pubescent, the pinnules are smoother and of a pale 



olive 



green. 



>> 



/> 



°ok., which is said to be darker green and to have a tripinnate 

 rond with narrower pinnules. Only one station is given, Her- 

 " llte Is^nd, Cape Horn, and no others are mentioned either in the 

 Synopsis or in the Flora Antarctica. 



In the Flora Novae Zelandiae, Mitten * applies the name 

 arcomitrium prehensile (changed to Aneura prehcnsilis in the 

 andbook) to a plant with smooth epidermis, and apparently con- 

 fers it identical with the Fuegian species. With the exception 

 this character, his description does indeed agree very closely 

 **h that of Hooker and Taylor. Massaloi 



sa )'s of his Riccardia prehcnsilis : " Cellulae superficiales thalli in 



a PPendicem mamillaeformcm pulcherrime prominent, "and Schiff- 



calls attention to the same peculiarity. Still more recently 



•^phani, basing his opinion on New Zealand specimens of 



A )h 



Mitten, describes a 



agonian plant as Aneura Savatieri n. sp. and names as his type 

 _J^of the material referred by Bescherelle and Massalongo to 



2 : 167. i8«. 



