

RAMALItfA. 23 



northward, as in the Pines of New Jersey, Austin ; and even on 



the south shore of Massachusetts, H. Willey. Small forms 



occur, from half an inch to an inch in height, with larger (rarely 

 6 mm - wide) white-pruinose apothecia, and the aspect of Usnea. 

 The elongated, flexuously-branched, exclusively southern form 

 reaches three inches in length, and is readily distinguished from 

 our other species. The slenderest of these forms scarcely differ 

 at all from the South American R. angulosa, Laur.,as determined 

 by Meissner, which should be E. gracilis (Pers.) Nyl. Eecogn. 

 p. 17, except in rather larger spores (the chemical differences 

 being excluded) and both E. gracilis, and E. angulosa, so far as- 

 the specimens (Brazil, Herb. Meissn. Cape of Good Hope, Herb. 

 Bonder) and the characters go, should be referable here. Spores 

 at length somewhat fusiform, when the lichen is inseparable 

 from 



b. Montagncei, which is wholly undistinguishable but by the 

 distinctly fusiform (rarely 3-locular) spores, ^ mic. E. rigida 

 part, Mont, in Ann. 2, 12, fide De Not. E. Montagncei, De Not- 

 Framm. Licit, p. 45. Nyl. Eecogn. Eamal. p. 30. 



Trees; South Carolina, H. W. Eavenel. Florida, Chapman. 



Louisiana, Hale. Texas, Wright. Branches of this, as of a, 



not rarely here and there united, forming meshes. 



6. E. linearis (L. f. ; Sw.) thallus tufted, compressed, slender, 

 for the most part channelled, somewhat elongated but sparingly 

 divided, long-acuminate above, pale greenish-glaucescent ; apo- 

 thecia smallish to middling-sized, marginal. Spores ellipsoid be- 

 coming sub-fusiform, -^ mic. E. linearis, Mont. ! herb. E. 



canaliculata, Tayl. ! in Hook. Lond. Journ. Bot. 1847, p. 188. 

 Nyl. Eecogn. p. 30. 



b. alludens ; spores narrow-fusiform, straight or oblique, ^ 

 mic. E. alludens, Nyl. Eecogn. p. 30. 



Trees and shrubs; Lower California, J. Xantus. Herb. Tay- 

 lor. Nylander. 



7. E. stenospora, Mull. ; thallus tufted, compressed, coarsely 

 longitudinally white-striate, and more or less tuberculate ; spar- 

 ingly divided, the divisions lanceolate-linear, now irregularly 

 minutely laciniate; greenish-glaucous ; apothecia middling-sized, 

 pedicellate. Spores fusiform, straight, or a little curved, ^ mic. 

 Lich. Beitr. in Flora, 1877, n. 30. 



