EVANS I HEPATIC/E COLLECTED IN SOUTHERN PATAGONIA. 39 



and Taylor's paper) consists of two parts a diagnosis in Latin, and a 

 somewhat fuller account in English with comparative remarks. In the 

 Synopsis Hepaticarum we find the diagnosis simply repeated and the 

 English account translated 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 

 supplemented by a figure of the plant with slightly enlarged details. This 

 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 ; lobis alternis secundis pinnatis, pin- 

 nulis planis linearibus crassinerviis ; " "Fronds loosely tufted, with broad 

 hooked tips, the stem flat, brown, pubescent, the pinnules are smoother 

 and of a pale olive green." The plant is compared with Jungermannia 

 eriocaula Hook., which is said to be darker green and to have a tripinnate 

 frond with narrower pinnules. Only one station is given, Hermite Island, 

 Cape Horn, and no others are mentioned either in the Synopsis or in the 

 Flora Antarctica. 



In the Flora Novae Zelandiae, Mitten 1 applies the name Sarcomitrium 

 prehensile (changed to Aneura prehensilis in the Handbook) to a plant 

 with smooth epidermis, and apparently considers it identical with the 

 Fuegian species. With the exception of this character, his description 

 does indeed agree very closely with that of Hooker and Taylor. Massa- 

 longo, on the other hand, says of his Riccardia prehensilis: " Cellulae 

 superficiales thalli in appendicem mamillaeformem pulcherrime prom- 

 inent," and Schiffner calls attention to the same peculiarity. Still 

 more recently Stephani, basing his opinion on New Zealand specimens, 

 of Aneura prehensilis presumably determined by Mitten, describes a 

 Patagonian plant as Anetira savatieri n. sp. and names as his type 

 some of the material referred by Bescherelle and Massalongo to Ric- 

 cardia prehensilis. His description is very clear, the account of the 

 epidermis being as follows: "Cellulae . . . corticales depresso-imbri- 

 catulae, t. e. } apex cellulae papulosae supra cellulam proximam parum 

 protractus; margo ubique hyalino subcrenulato." He remarks further: 

 "Aneura prehensilis (ex insula N. Zelandia) multo robustior est, epider- 

 mide plano-celhdosa" 



^p. tit. 2: 167. 1855. 



