Opegrapha diffracticola R.C.Harris & Ladd

Filed As

Roccellaceae
Opegrapha diffracticola R.C.Harris & Ladd ( holotype )

Collector(s)

R. C. Harris 46555, 04 May 2002

Location

United States of America. Missouri. Maries Co. Spring Creek Gap Conservation Area east of County Road 340 (Old Hwy 63), ca. ½ mile north of US 63.

Habitat

floodplain forest. bark of Juniperus virginiana.

Host: Bacidia diffracta S.Ekman

Description

Ascomata lirelliform, growing on thallus and apothecia of Bacidia diffracta, sessile, fusiform to " oblong, undivided to once branched, 0.3-0.5 H 0.2 mm, solitary and scattered or aggregated into irregular clusters, to 3 H 2 mm in size; disk concealed by appressed lips. Exciple brown-black, greenish black in KOH, entire, thickened below, to 50-60 :m thick. Hypothecium thin, colorless. Epihymenium yellow-brown (KOH-). Hymenium colorless, I+ patchily blue-green. Asci ovoid, with 8 " biseriately arranged spores. Ascospores remaining colorless, 3-septate, with thin halo, 13-15 x 4-4.5 :m. Pycnidia brown, " globose, ca. 100 :m mm across. Conidia rod-shaped, 4.5 H 1.0 :m. Distribution. Apparently common in the Ozark region and known also from Vermont and Wisconsin, but probably occurs throughout the range of its host which is widely distributed in eastern North America (see Ekman, 1996).

Identifiers

NY Barcode: 799618

Occurrence ID: 93722ef4-d6e3-4c5e-a28c-56dfa2902b9d

Related Objects

Specimen - 799601, R. C. Harris 46555A, Bacidia diffracta S.Ekman, Ramalinaceae, Ascomycota; North America, United States of America, Missouri, Maries Co.

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