Observation 102452: Cookeina tricholoma (Mont.) Kuntze

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By: Eduardo A. Esquivel Rios (Eduardo27)
2012-07-24 11:40:10 PDT (-0700)

Ok. En este especimen el tallo mide 4.0 cm. de largo. y que me dice que el apotecio no sea una copa cerrada, sino un embudo enrollado, abierto lateralmente, tanto en este como en la observacion 99170.

often ≠ always
By: Danny Newman (myxomop)
2012-07-24 10:43:01 PDT (-0700)

Observation 54268
Observation 53852
Observation 58826
Observation 54461
+ several hundred examples across the web.

By: Eduardo A. Esquivel Rios (Eduardo27)
2012-07-24 04:24:06 PDT (-0700)

“stem often so short that the apothecia appear to be sessile”

By: Eduardo A. Esquivel Rios (Eduardo27)
2012-07-23 19:08:43 PDT (-0700)

OK, pero en C. tricholoma el tallo esta claramente diferenciado de la copa, en este especimen el tallo no esta diferenciado y es muy largo.

from The North American Cup-Fungi (Operculates)
By: Danny Newman (myxomop)
2012-07-23 16:52:12 PDT (-0700)

1. Cookeina Tricholoma (Mont.) Kuntze, Rev. Gen. PI. 2: 849.
1891. (Plate 18, fig. 2.)

Peziza Tricholoma Mont. Ann. Sci. Nat. II. 2: 77. 1834.
Peziza Hystrix Berk. Ann. Mag. Nat. Hist. II. 9: 201. 1852.
Trichoscypha Tricholoma Sacc. Syll. Fung. 8: 160. 1889.
Pilocratera Tricholoma P. Henn. in Engler, Bot. Jahr. 14: 364. 1892.
Peziza striispora Ellis & Ev. Bull. Lab. Nat. Hist. State Univ. Iowa 4: 69.

Sarcoscypha striispora Sacc. Syll. Fung. 14: 754. 1899.

Apothecia stipitate or substipitate, cup-shaped with the
margin slightly incurved, reaching a diameter of 1-1.5 cm. and
a depth of 1 cm., externally clothed with long hairs which are
more numerous around the margin, forming an incurved fringe,
deep-red, fading in drying; hymenium bright-red, almost scarlet;
stem often so short that the apothecia appear to be sessile and
again, often 2-3 cm. long and about 2 mm. in diameter; hairs
often 2-3 mm. long and 100-175 μm. in diameter at the base,
gradually tapering upward, whitish or pale-brown, composed of a
dense fascicle of mycelial threads; asci cylindric above, reaching
a length of 350-374 μm and a diameter of 20 μm, abruptly narrowed
below into a short, appendage-like base; spores ellipsoid to
fusoid, 12-14 X 27-33 μm, hyaline or subhyaline, containing one
or two large oil-drops, usually marked with delicate, longi-
tudinal striations; paraphyses filiform, slender, slightly enlarged

On old wood and bark.

Type locality: Central America.

Distribution: West Indies, Mexico, Central America; also
in South America, Australia and the Philippine Islands.

Illustrations: Ann. Sci. Nat. II. 2: pi. 4, J. 2; Cooke,
Mycographia pi. 57, /. 202; E. & P. Nat. Pfl. V: 195, /. 155,
C-E; Mycologia 5 : pi. 88 (lower figure) and pi. 90, f. 1-2.

No mention of a requisite hair color here.

so these:
By: Danny Newman (myxomop)
2012-07-23 16:41:09 PDT (-0700)


are not C. tricholoma? What is your reference for this mandatory excipular hair color?

Cookeina is probably the genus, at least according to macromorphology and spore shape. Could you see striations on the spore walls?

By: Eduardo A. Esquivel Rios (Eduardo27)
2012-07-23 16:07:06 PDT (-0700)

La C. tricholoma tiene los pelos transparentes y el ascocarpo es una copa continua, este especimen tiene los pelos oscuros, casi negros, y el ascocarpo es un embudo abierto y alargado.

By: Eduardo A. Esquivel Rios (Eduardo27)
2012-07-22 16:03:45 PDT (-0700)

Similar al especimen de la Observacion 99170

Created: 2012-07-22 15:47:10 PDT (-0700)
Last modified: 2012-07-26 20:22:10 PDT (-0700)
Viewed: 119 times, last viewed: 2017-06-13 06:49:23 PDT (-0700)
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