-69-- 



1 891). 1 have not observed the variety, which Nylander defined as follows: "Variat 

 haec Ramalina cortice distincte transversim rimoso et hinc inde obsolete lac- 

 unoso-inequali, var. disrupta, accedens ad sequentem, a qua differt praecipue 

 receptaculo laevi. " It appears to be only a contingent phase at best, differing 

 because of its smooth thalline exciple. 



Ramalina testudinaria Nyl. 



Synonymy: Ramalina testudinaria Nyl., Recog. mono. Ram. 108 [10]. 

 1870. 



Type: In the herbarium of the Museum histoire d'naturelle, Paris, fide 

 Author. Cotype in the Sprague herbarium, Boston Society of Natural His- 

 tory, Boston, fide Author. 



Type locality: "California." Menzies. 



Original description: "Thallus ochroleuco-pallidus vel stramineo-rufes- 

 cens, rigens, compressus, anceps, lacunose plano-impressiusculus vel rarius sub- 

 laevigatus, cortice transversim aut demum areolatim rimoso, parum ramosus, 

 apicibus attenuatis; apothecia carneo-testacea 

 (interdum leviter albocaesio-pruinosa) margina- 

 lia vel subterminalia, mediocria vel majuscula 

 (latit. 3-12 millim.), receptaculo lacunoso-rugoso 

 subpedicellato et margine plicato-undulato ru- 

 goso tumescente; sporae oblongae rectae velleviter 

 curvulae, longit. o. 010-15 millim., crassit. 0.003-4 

 millim. " /. c. 



Figure: PI. VII, f. 2. 



Diagnosis: Thallus caespitose, much com- 

 pressed, wow-attenuate, rigid, tra?isverse-rimose, 

 apothecia mostly terminal, aggregate. Spores 

 oblong, straight or substraight. 



Description : Thallus caespitose (max. length 

 6 cm.) rigid, virescent to rufescent; cortex glab- 

 rous, transverse-rimose or rugose; laciniae, 

 compressed spatulate, two-edged, subsimple or 

 branched, expanded and digitate above or laterally 

 (max. width 2.5 cm.), apices blunt-attenuate. 

 Apothecia common, subterminal, or terminal, 

 often aggregate, applanate or concave, mar- 

 ginate at length lacerate (max. diam. 10 mm.), thalline exciple rugose, disk 



concolorous. Spores ellipsoid, straight or substraight, 



Contingent phases: (a) Angularly terete, lacunose {R. testudinaria v. 

 intermedia Miill. Arg. Flora 40: 300. 1882.)^ 



Fig. I. — Distribution of i?aw- 

 alina homalea, R. testudi- 

 naria, and their varieties. 



^ Type in Herbier Boissier, Chambesy, Switzerland. "Laciniae primariae circ. 4 cm. longae 

 .5-3 mm. latae, in sectione undique terestiusculae, caeterum undique acutius angulosae et fove- 

 olato — et plano-impressae, superne subinde brevi spatio 3-plo laterioris v. undique aequal's." 

 In California. 



