Howe: American Species of Alectoria 



125 



I have seen but one European specimen of this plant (NY) which 

 seems like a highly spinulose condition of chalybeiformis. I have 

 been unable to secure the original description of this variety. 



Specimens Examined . 

 Labrador: Battle Harbor, A. C. Waghome, Aug. 25, 1891 

 (ANS). Newfoundland: ? Harbor, A. C. Waghome, 1890 

 (ANS). Maine: Blanchard, F. G. Blake, Jan. 1909 (1818 H) ; 

 Camden, A. L. Crockett, May 18, 1901 (4 SM). New Hamp- 

 shire: White mts., Tuckerman, fertile (S) ; Tuckerman, 1840 

 (NH) ; Mt. Liberty, C. E. Cummings, Aug. 24, 1892 (3183 F) ; 

 Franconia mts., C. E. Cummings, Aug. 19, 1893? (ANS). Al- 

 berta: Morley, Macoun, June 13, 1885 (CGS). British Co- 

 lumbia: New Westminster, /. Macoun, Aug. 28, 1893 (ANS). 

 Yukon: Crater Lake, R. S. Williams, May 24, 1898 (1861 H). 

 Alaska: St. Pauls Is., July 24, 1897 (3181 F) ; Kakutat Bay, 

 W. Trelease, June 22, 1899 (CEC) ; BaranofT Is., DcA. Saunders, 

 June 15, 1899 (CEC). 



Alectoria oregana Nyl. ex Tuck. Herb. Lich. Japoniae, Acce- 

 dunt obser. Lich. in Labuan, Paris, 104. 1890 



Type : No. 72, Tuckerman herbarium, Botanic Museum, Har- 

 vard University, Cambridge, Mass., fide Dr. Farlow. 



Type locality : Oregon. 



Original description: " Subsimilis A. prolixae f. lanestris 

 Ach., thallo fusco-nigricante tenui denso ; apothecia spadicea 

 (latit. 2-5 millim.), receptaculo ciliato ; sporae 8 nae breviter 

 ellipsoidaea, long. 0.005-6, crass. 0.0035-43 millim. I gel. hym. 

 coerulescens, dein fulvescens. Thallus basi pallescens K (CaCl) 

 — . — In Oregon (corticola videtur), species insignis praesertim 

 apotheciis receptaculo usneoideo-ciliato." 



Diagnosis: Thallus caespitose to pendulose, red-brozvn, apo- 

 thecial margins fimbrio-ciliate. 



Description : Thallus caespitose to pendulous, rigid-fila- 

 mentous portions lax, subterete to compressed, brown to reddish- 

 brown ; cortex glabrous, dull, rarely nitidous, subcanaliculate ; 

 primary branches rigid, short (2 cm.), stout, subdichotomous, 

 becoming filiform and pendulous; secondary branches filiform; 

 pendulous, subdichotomous ; fibrils capillaceous. Apothecia 

 common, small (max. dia. 7 mm.), appendiculate or lateral, 



