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Type locality: ^'Algeri" "sui rami." 



Fig. I. Distribution 

 of R. Duriaei. 



Original description: "R. caespitosa, thallo foli- 

 aceo, chartaceo, fiaccido, venoso-rugoso, areolatove, 

 opaco, dilute glauco vel fulvo-Iutescente, varie laciniato, 

 segmentis cuneato-dilatatis, irregularibusve, polymor- 

 phis, margine lacero-fimbriatis, fimbriis dentiformibus vel 

 elongatis, pinnatim digitatimve dispositis, difformibusque, 

 facie, margine hinc inde, vel plerumque apice epidermide 

 secedente albo-maculatis, vix vero pulverulentis; apotheciis 

 sparsis sessilibus, basilata adnatis, tenuibus margine 

 insigniter incurvato, tandem-eroso denticulato concavis, 

 concoloribus, fulvescentibus; sporidiis cylindraceo-oblongis, 

 curvulis, diametro quadruplo longioribus. " I.e. 



Figure: Smith, Eng. Bot. pi. 1607 (upper figure). 1806. 

 Diagnosis: Thallus caespitose, compressed, flaccid, reticulate-rugose, apo- 

 thecia marginal, spores curved. 



Description: Thallus caespitose (max. alt. 5 cm.), flaccid; stramineous to 

 virescent; cortex reticulate-rugose, sorediate; laciniae compressed, expanded, 

 lacerate, (max. i cm.), apices lobulate. Apothecia very rare (unobserved from 

 our area), marginal, concave, marginate, disk buff or concolorous. Spores 

 ellipsoid, curved, 



Contingent phases: With orange cephalodia. 



Substrata: On trees and shrubs. (Type of evernioides Nyl. on earth.) 

 Distribution: Rare in the Austral to Transition Zone on the southern coast 

 of California. 



Stations: California: Santa Monica Mts. ; Pasadena; Pt. Loma; San Diego; 

 San Rogue Island; Carpentaria. West Indies: St. Vincent. 



Observations: This distinct, non-chondroid, corticolous species was first 

 sent to me by Dr. H. E. Hasse from Pt. Loma, San Diego (Bryologist 13: in. 

 1910.). This determination was confirmed by Dr. Bouly des Lesdain. It has 

 since been reported from various stations and almost invariably bears orange 

 cephalodia. Its expanded, membranous, laciniate laciniae, completely reticu- 

 iated-rugosC; always distinguishes the species, though our plants have been pre- 

 viously determined as Evernia prunastri, R. pollinaria, the variety humilis 

 of polymorpha, and even testudinaria by Nylander himself. There is a specimen 

 in the U. S. National Herbarium determined by Dr. Farlow, labeled homalea, 

 "abnormal form." Dr. H. E. Hasse {in litt.) states that he has collected the 

 plant recently at Newport, Orange Co., and Palo Verde, Los Angeles Co., Cal. 

 (Contri. U. S. Nat. Herb. 17: 108. 1913.) 



Note: Ramalina crispatula Nyl. (Recog. mono. Ram. 154. 1870.) 



The Abbe Hue (Lich. Cal. 1-2. 1905.) records this "rare espece" from 

 Laguna. Nylander diagnosed the species as follows: "Est quasi R. evernioides 

 thallo crassiore (crassitie saepe 1-2 millimetrorum), plano-laevigato (rarius hinc 

 inde scrobiculoso-inaequali vel plicato-rugoso), lacinioso, laciniis apice palmato- 



