Pleosporales » Melanommataceae » Camposporium

Camposporium marylandicum

Camposporium marylandicum Shearer

Index Fungorum number: IF 310208

Holotype: ILLS 35538


Sexual morph: Undetermined. Asexual morph: Mycelium immersed or superficial on balsa wood, colonies appearing as hyaline tufts becoming yellow with age. Hyphae septate, hyaline, light brown when older. Conidiophores macronematous, mononematous, hyaline, simple or branched, erect, straight to irregularly bent, 0–5 septate, (41–)69(–127) × (2–)2.8(–3) µm, tapering to 2 µm at the apex, arising as lateral, erect branches from repent hyphae. Conidiogenous cells terminal, integrated, sympodial, polyblastic, denticulate; each denticle a narrow stalk which breaks from the conidiogenous cell with the secession of the conidium. Conidia (24.7–)33 (–44) × (4.5-)4.7(–6.5) µm, holoblastic, acropleurogenous, hyaline, 5–10-septate, cylindrical to cylindric-fusoid, tapering to a rounded apex and truncate base which usually bears the remains of a denticle. Conidial apex often elongated to form a long filiform appendage 33.5–80 × 0.5–1 µm.


Specimens examined: On balsa wood submerged in the Patuxent River, Patuxent Wildlife Refuge, Laurel, Md., June 6, 1969, Shearer CS-176; May 22, 1969, Shearer CS-176-1; Feb. 2, 1970, Shearer CS-176-2.


Freshwater distribution: USA (Shearer 1974)


Photographic plates:



Shearer CA (1974) Fungi of the Chesapeake Bay and its tributaries IV. Three new species from the Patuxent River. Mycologia 66:16–24.


About Freshwater Fungi

The webpage Freshwater Fungi provides an up-to-date classification and account of all genera of freshwater fungi.


Published by the Mushroom Research Foundation 
Copyright © The copyright belongs to the Mushroom Research Foundation. All Rights Reserved.