4O PATAGONIAN EXPEDITIONS I BOTANY. 



In view of these conflicting opinions, I have consulted Taylor's original 

 specimens of Jungermannia prehensilis from Hermite Island. They are 

 remarkably free from admixture and show the peculiar papillose epidermis 

 described above, indicating that the Patagonian plant is to be looked 

 upon as the true Aneura prehensilis (Hook. f. & Tayl.). The New Zea- 

 land plant with the smooth epidermis is probably an unnamed species. 



The papilliform epidermal cells of Aneura prehensilis are somewhat 

 variable in their distribution ; on some stems they occur on both surfaces, 

 on others only on the antical surface, while on the pinnules they are scat- 

 tered and sometimes few in number. A robust rachis is about fifteen cells 

 thick, but its cells are unlike those found in most members of the genus ; 

 on the outside there are one or two layers of rather thin-walled cells (in- 

 cluding the epidermis) and just inside these are two or three layers of 

 cells with very thick brown walls, the thickening being deposited un- 

 equally and leaving irregular cell-cavities ; the interior is filled with cells 

 having slightly thickened pale walls. These different kinds of cells do 

 not vary markedly in size. 



The nearest ally of Aneura prehensilis is the more robust A. eriocaula 

 of New Zealand. In this- species the rachis, as described by Leitgeb, 1 is 

 essentially like that of the Patagonian plant. The epidermis shows papil- 

 liform cells, but the papillae, instead of being appressed, stand out from 

 the rachis at right angles and give it a hirsute appearance. 



7. ANEURA SPEGAZZINIANA (Massal.) Steph. Hedwigia, 32: 138. 1893. 



Riccardia spegazziniana Massal. Nuovo Gior. Bot. Ital. 17: 254. //. 25. 



f. 3 2. 1885. 

 Fuegia. (W. Magellan, Dusen.) 



8. ANTHOCEROS ENDIVDEFOLIUS Mont. Voy. au P61e Sud. Bot. Crypt. 



i: 211. 1845. 



Lapataia. (Punta Arenas, and W. Magell. Savatier.) 



The plants referred to this species agree closely with the detailed 



description of Massalongo 2 as well as with the more meager original 



description of Montagne. In the Taylor Herbarium, there is an Antho- 



ceros from Cape Horn, labeled A. punctatus which belongs here, and, 



1 Unters. iiber die Leberm. 3 : 49. 1 877. 

 2 Nuovo Gior. Bot. Ital. 17: 258. 1885. 



