14 PATAGONIAN EXPEDITIONS: BOTANY 



Molina. Less important are Eugenia sp., Rhaphithamnus cyanocarpus 

 Miers, Tecoma valdiviana, Dacostea mscifolia Clos. and D. racemosa, 

 Pernettya furens and Berberis darivinii Hook. Eugenia sp. occasionally 

 occurs in dense copses and then generally together with Blechnum magel- 

 lanicwn. Hymenophyllacece also are plentiful in the thickets of the sea- 

 shore, and to those species that I have mentioned before I may now add 

 Hymenophyllum caudiciilatwn Hook. 



In the littoral belt the lichens have their proper abode, occurring here 

 in large masses. They belong almost exclusively to the genus Pseudocy- 

 phellaria, the following species being the most important : P. fossulata 

 (Del.) Malme, P. faveolata (Del.) Malme, var. cervicornis (Plot), P. 

 orygmcea (Ach.) P. urvillei (Del.) Malme, P. orygmcea (Ach.) flavicans 

 (Hook, et Tayl.) Malme, P. nitida (Tayl.) Malme, and P. freycinetii 

 (Del.) Malme. " 



On the cliffs by the shore the vegetation is, as a rule, very poor in 

 species. I should mention as occurring here some phanerogamic plants, 

 as Cotula scariosa, Crassula moschata, Colobanthus quitensis Barth., 

 Juncus planifolius R. Br., var. demissus Buch., and Aim caryophyllea, 

 L. ; of Musci, Macromitrium bifasciculare sp. nov., and Barbula micro- 

 runcinata sp. nov. ; and of Lichens, *Stereococaulon ramulosum (Sw.) 

 Ach., together with its variety implexum Th. Fr. 



On sandy ground, which occurs only along the small bays, the vege- 

 tation of the forest is somewhat different; also that of the thickets, and 

 especially that of the herbaceous plants, is denser here than elsewhere. 



At Puerto Low, a cave on the northern side of the main island, Isla 

 Guaiteca, the vegetation is disposed as follows : Next to the shore is a 

 low belt, chiefly taken up by Juncacece and Grammeee, next comes a belt 

 of thickets and then the virgin forest. In the outermost belt Des- 

 champsia kingii (Hook, fil.) Desv., Elymus sp., Poafuegiana (Hook, fil.) 

 and Juncus lesueurii Bol., predominate, more or less richly intermingled 

 with the following species: Cerastium arvense L., Lathyrus magellanicus 

 Lam. and L. maritimus (L.) Big., Senecio otites Kze. and S. smithii DC, 

 Accena ovalifolia Ruiz et Pav., Galiiim relbun Endl., Libertia elegans 

 Poepp., Sonchus fallax Waltr., Polygonum chilense Koch, Rumex sp., 

 Cardamine ovata Phil., Solanum furcatum Poir., Apiiun graveolens L., 

 Baccharis sagittalis DC., Lepidium bipinnatijidum Desv., Hydrocotyle sp. 

 (sterile), Cotula scariosa, Ranunculus chilensis DC., Selliera radicans 



