Two new species of Sarcoscypha (Sarcosyphaceae, Pezizales) from Taiwan
Author
Wang, Yei-Zeng
Author
Huang, Chun-Lin
Author
Wei, Jia-Ling
text
Phytotaxa
2016
2016-01-25
245
2
169
177
http://dx.doi.org/10.11646/phytotaxa.245.2.8
journal article
10.11646/phytotaxa.245.2.8
1179-3163
13677581
Sarcoscypha minuta
Yei Z. Wang, C.L. Huang & J.L. Wei
,
sp. nov.
Figs. 3
,
4
. MycoBank MB 814977.
Type
:—
TAIWAN
,
New Taipei City
,
Beijishan
, elev.
300 m
, on fruit shell,
7 December 2014
,
J.L. Wei
;
Wei 14-264 (
Holotype
,
TNM
F28831
)
.
Apothecia
gregarious, cyathiform to cupuliform, small,
1−5 mm
diam., stipitate.
Disc
concave, Orange to Cadmium Yellow (Ridgway), margin crenulate, raised, 100−200 μm high, inrolled when dry.
Receptacle
paler, contracted below into a short stalk;
1−2 mm
high, glabrous, surface with short hyphae protrusions, base with creamy white subiculum, hyphae 3−5 μm wide.
Ectal excipulum
thin, 25−50 μm thick,
textura prismatica
to
textura porrecta,
hyphae 2−5 μm wide, yellowish, extending out as short protrusions.
Medullary excipulum
250−300 μm thick, white, of loose
textura intricata
, hyphae 2−4 μm wide.
Hymenium
layer 250−300 μm thick.
Asci
8-spored, J−, cylindrical, 180−250 × 7−10 μm, base without croziers.
Ascospores
uniseriate, broadly ellipsoid, smooth, (15−)16−20(−22) × (7−)8−10 μm, containing a large guttule when fresh.
Paraphyses
filiform, slightly exceeding the asci, 2−5 μm wide, sparsely septate, apex simple. Conidia not seen.
FIGURE 3.
Sarcoscypha minuta
(holotype, TNM F28831): (A) two asci, (B) apex of paraphyses, (C) ascospores, (D) a part of excipulum. Bar: 25 μm for A, B, D; 10 μm for C.
Etymology
:—referring to the small apothecia.
Notes:—
This species is characterized by the combination of very small apothecia, short asci and small ascospores with a large guttule. The closely related species,
S. korfiana
F.A. Harr.
, also has small apothecia, but is with yellow hymenium, hairy stipe, and grows on woody substrates (
Zhuang 1993
;
Harrington 1997
).
Harrington (1997)
cited a specimen of
S. mesocyatha
collected from the endocarp of a
Myrsine
species
, however, it has larger ascospores with deep depression at both ends (
Zhuang 2000
).