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ön n. american, non-saxicolotjs rinodina 33
2 b. Spores 8.
3 a. Ap. usually above 0.5 mm, plane, + black. Sp. 12—15 X 6.5—8 u..
4 a. Th. whitish grey, Ihin, K + yellow. Ap. not corticated. Gon. str. and epit.
granular; epit. Pd + ochraceous. Ends of par. thin 2. granuligerci
(4 b. Th. grey- to red-brown, + lliick, hypothallus black. Ap. dense, Iheir corl.
thick, 1+ blue. Sp. constricted, walt uniform 3. sophodes)
3 b. Ap. up to 0.5 mm broad. Sp. wall uniform.
(5 a. Sp. wall not very thin. Th. in small patches, grey lo pale. Ap. 0.2—
0.35(0.5) mm, dense, soon convex. Par. + free, capitate. Sp. 13 15 X
6—7 u. 4. pyrina)
5 b. Sp. wall very thin. Ap. plane.
Ga. Hypothecium + hyaline. Sp. constricted. Ends of par. 3.5—5 [j..
7 a. Th. green-plumbeous, orbicular, areolae plane, K Ap. 0.3—- 0.5
min. margin nol prominent. No exc. Thec. 85 u., ends of par.
± branched. Sp. 12—14 X 5—6 u 5. subplumbea
7 b. Th. green-brown, minutely verrucose, K—. Ap. 0.2—0.3 mm,
prominent. No exc. Hypothecium thick, cells 2 u.. Thec. 50—60 a. Ends
of par. ± discrele. Sp. 10–13 X 5.5—(5 u. 0. Finkii
7 c. Th. grey-white, scabrid, elfuse, K + . Ap. 0.4 mm, ± sessile, margin
thick. Corl. ± developed. Thec. 70 80 u.. Sp. 11—13X6—7 a
8. dakotensis
6 b. Hypothecium + yéllowish brown. Ap. + marginated. Th. K+ yellow.
8 a. Th. green-brown lo pale grey, ± granular, thin or thick. Ap. 0.2—
0.45 mm. No cort. Thec. 60—70 u.. Sp. 11—13X6—6.5 [/.
7. milliaria
8 b. Th. grey to whitish. Ap. margin not prominent. Thec. 70 a.
9 a. Th. thin, granular, scabrid, effuse. Ap. 0.4 mm, + sessile, margin
thick. Cort. + developed, cells 3 a. Ends of par. 3.5—5 u.. Sp.
11 —13 X 6—7 [A 8. dakotensis
9 1). Th. in part lliick, areolate. Ap. 0.25- 0.4 mm, innate, margin Ihin.
No cort. or exc. Apices of par. 3.5 a. Sp. 12—14 X 7—7.5 a
9. pennsylvanien
9 c. Th. lliick, uneven, not areolate. Ap. 0.3—0.5 mm, dense. innate,
margin lliick, granular. Par. capitate, 4 -5 a. Sp. 10—13 X
5—6.5 |x 10. inaequalis
1 t). Sp. usually 15—25 a long.
10 a. Corticolous.
11 a. Th. white, grey or disappearing.
12 a. Sp. wall thin. uniform. Th. yellow-grey, very thin. Ap. 0.25—0.4 mm,
margin (hin. Corl. 20 u., cells 3—5 u.. Ends of par. 4 —5 (/.. Sp. 15—17 X
7.5—8 a 11. Santae Monicae
12 b. Sp. wall thick, uniform, lumina roundish.
13 a. Th. grey-white, very thin, limited, K—. Ap. 0.3—0.6 mm. Thec. 75 [/.,
ends of par. 3—4 [/., with brown cap. Sp. 17—19 X 8.5 [a
12. applanata
(13 b. Th. ± thick, white, uneven, K+ yellow. Ap. above 1 mm broad. Cort.
35—50 u.. Thec. 85—100 a. Ends of par. 3 u.. Sp. 17—20 X 10 -13 a
13. roboris)
3 Botaniska Notiser J947.
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