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ön n. american, non-saxicolotjs rinodina
47
100 ij., hyaline or yellowish, 1+ dark blue or lower ,’55 u, 1 — ( = exciple).
Thecium about 100 [j. high, hyaline, 1+ dark blue; upper 20 ij. dark
orange brown, Pd—. Paraphyses 1.5 a, in much gelatine, ends in KOH
somewhat discrele, 2(3) ij., hardt v clavate, pale yellowish brown,
some-times branched towards apices. Spores 8. 20—25X8.5—9.5 u, brownish
green, apical walt at first slightly con ve k inwards, 3.5 [j,, soon concave,
septum 1.7—2.5 a, central lamella distinct, thin.
Washington: Whatcom Co., »ön smooth barks in the
low-lands» (Herre in Bryol. 20:84. 1917). Washington Territory,
leg. W. Eckfeldt 1891—2. »Lichens of No. America no. 11» (L.).
Ön Alnus. Well developed and completely agreeing with the
descrip-tion in Synopsis; Westport, leg. A. S. Foster, ön Alnus (Hasse 1913).
— Ore g o n. »11. Willey misit» (U.), similar to the first, hut slightly
thicker with smaller apothecia. — California. »Ad cort.
Quer-cuum pr. Los Catos, leg. A. C. Herre» in Krvpt. Vind. 1560 (L. S.);
San Diego, Eckfeldt 1891—2 (L.) s. n. R. sophodes; St. Monica Range
in Hasse-Plitt exs. 73 s. n. R. roboris {-\-Bu.elliu sp.); San Gabriel
Range, at and above 800 meters elevation (Hasse 1913); Santa Cruz
Mts, Devils Canon, ön oaks, Herre (Gbg); »Ön the bark of various
trees, but abundant and conspicuous ön oaks; in the mountains al
1500 1’eet and above, and also in deep, dark canons beside perennial
streams as löw as 600 feet» (Herre 1910); Santa Clara Mts, 2500’, 1938,
Herre (hb. Mn). — Apparently with marked western distribution.
Of coarse, its appearance varies under different conditions. Thus
Krypt. Vind. 1560 is less typical with almost whitish grey thallus, partly
with a brownish shade, and verv convex, möre reddish brown
apothecia, partly dark cinnamomeous, probably from a moist situation.
When Zahlbruckner savs in bis long description ön llie label that the
thecium is 170 —200 tj. high, be is wrong, but in llie half globose
apothecia the hypothecium may reach 100 ;j. or even möre in height.
20. R. ascociscana Tuck.
Genera lich.: 124, 1872; Synopsis 7:206, 1882. Fink, in Contrib.
U. S. Na t. Herb. U: 221, 1910; Lich. flora U. S.: 376, 1935. Zahlbr., Calal.
lich. 7:484, 1931. Degelius in Ark. f. Bot. 30 A, No. 1:55, 1940; No. 3:
69, 1941. - Psoroma ascociscana Tuck. in Am. Journ. Arts a. Sci.
25:424, 1858.
Exs.: Reliq. Tuck. 86 (L„ S„ hb. Mn).
Thallus (in Reliq. Tuck. 86) quite indistinct, or large, continuous,
pale or glaucous, or consisting of brownish yellow, very thin, smooth,
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