SECTION HYPOXYLON

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Genus Hypoxylon
Key to Taxa of Hypoxylon
Accepted Taxa
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Jack
Yu-Ming Ju
Michael J. Adams

Hypoxylon section Hypoxylon emend. Y.-M. Ju & J. D. Rogers
TYPE: H. coccineum Bull. [= H. fragiforme (Pers.: Fr.) J. Kickx fil.]

º Hypoxylon section Sphaeroxylon Cooke, Grevillea 11: 135. 1883.
LECTOTYPE [selected by Ju and Rogers (1996)]: H. coccineum Bull. [= H. fragiforme (Pers.: Fr.) J. Kickx fil.]

= Hypoxylon section Placoxylum Sacc., Syll. Fung. I, p. 374. 1882.
LECTOTYPE [selected by Ju and Rogers (1996)]: H. purpureum Nitschke [= H. fuscum (Pers.: Fr.) Fr.]

= Hypoxylon section Glomerulatum Rick, BrotÚria, sÚr. Bot., 25: 26. 1931.
TYPE: H. glomerulatum Theiss. [= H. subrutilum Starb.]

= Hypoxylon section Effusum Rick, BrotÚria, sÚr. Bot., 25: 27. 1931.
LECTOTYPE [selected by Ju and Rogers (1996)]: H. haematites LÚv. ex Theiss., non LÚv. ex Cooke [= H. subrutilum Starb.]

= Hypoxylon section Rubiginosum Rick, BrotÚria, sÚr. Bot., 25: 29. 1931.
TYPE: H. rubiginosum (Pers.: Fr.) Fr.

Stromata with surface usually colored when mature, infrequently blackened. Carbonaceous stromatal material surrounding individual perithecia absent (Fig. 1). Ostioles usually lower than the level of stromatal surface (Fig. 2), less frequently at the same level or slightly higher than the level of stromatal surface, never encircled with an annulate disc. Perispore, when dehiscing, with conspicuous to inconspicuous transverse coil-like ornamentation visible (Fig. 3). peritheciumH.JPG (8851 bytes)
Fig. 1

ostioleH.JPG (6193 bytes)
Fig. 2

perisporeH.JPG (15028 bytes)
Fig. 3