20 RAMALINA. 



Spores dactyloid, l ^ mic. Suppl. 1 (Amer. Journ. Sci. 25) p. 



423. Nyl. Syn. I,]?. 260. 



Shrubs (Obione) on the coast of California (Dr. C. C. Parry), 

 Tuckerman I. c. 1858. 



3. E. pliycopsis, Ach. ; thallus coriaceous, terete-compressed, 

 dwarfish, dichotomously at length much branched, whitish ash- 

 coloured, often sorediiferous ; ["apothecia lecideine, small, black, 



naked or lightly pruinose. Spores fusiform-oblong,^^ mic."] 



Ach. L. U. p. 440. Schcer. Enum. p. 7. Nyl Syn. p. 259. 



San Diego, California, now on bushes, etc., in company with 

 the last, Dr. Hill (Hassler exp.) the same with a Peruvian 

 (Herb. Berol.) and Cape of Good Hope (Zeyher ; Wright) form 

 referable here, and flatter than the Madeira lichen (Nyl. in Man- 

 don Lich. Mader. n. 36) with which one from Cuba (Wright) 

 perfectly agrees. The very dubious plant offers now the aspect 

 of E. tinctoria and now of E. fuciformis, and is not easily referred 

 to either. 



4. E. fuciformis (L.) Ach. ; thallus cartilagineous-coriaceous, 

 compressed, flat, dichotomously divided into linear-lanceolate, 

 attenuate segments ; greenish-glaucous and pale ; apothecia, mar- 

 ginal, sessile, disk flattish, grey-pruinose, the margin somewhat 



persistent. Spores fusiform, ^J mic. Ach. L. U.p. 440. Fr. 



L. E. p. 33. Schcer. Enum. p. 7. Nyl. Syn. p. 260. 



Kocks, La Paz, Lower California, Dr. H. N. Bolander. ' 



II. RAMALINA, Ach., De Not. 



Apothecia scutellseform, mostly marginal, sub-pedicel- 

 late ; the disk pale. Spores ellipsoid, or oblong, now be- 

 coming fusiform; bilocular; colourless. Spermatia oblong, 

 or staff-shaped ; upon sparingly branched sterigmas. Thal- 

 lus fruticulose, or finally pendulous, mostly compressed, or 

 at length .sub-foliaceous, alike on both sides, cartilagineous, 

 pale greenish-glaucesceut ; the cottony medullary filaments 

 in part coalescing into solid cords. Anatomy of the thal- 

 lus (of the group represented by E. calicaris) given in 

 Schwendener, Untersuch. I c. 2, p. 155, t. 5, /. 7-11. 

 The rigidity, or at least tenacity of the thallus is largely 



