Amanita ovalispora

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name	Amanita ovalispora
name status	nomen acceptum
author	Boedijn
english name	"Boedijn's Oval-Spored Ringless Amanita"
images	1. Amanita ovalispora, Yunnan Prov., China. 2. Amanita ovalispora, southern tropical region, Yunnan Prov., China. 3. Amanita ovalispora, southern tropical region, Yunnan Prov., China. 4. Amanita ovalispora, southern tropical region, Yunnan Prov., China.
cap	The fruiting bodies of Amanita ovalispora are small to medium-sized. Its cap is 40 - 70 mm wide, applanate, and sometimes slightly depressed in the center. It is gray to dark gray and glabrous and occasionally covered with white, membranous volval remnants. The margin is tuberculate-striate (30% to 40% of radius) and non-appendiculate, and the context is white.
gills	The gills are free, white, becoming grey to brownish; and the short gills are truncate.
stem	The exannulate stem is 60 - 100 × 6 - 15 mm, subcylindric or slightly attenuate upwards, fistulose, with a surface that is white to dirty white. The upper half of the stipe is often covered with white farinose squamules. The stipe lacks a basal bulb. At the stipe base, the volva is 20 - 40 × 12 - 25 mm, saccate, with an outer surface that is white to whitish and an inner surface that is white to greyish. There is an internal limb present on the inner surface of the volva.
spores	Spores measure (8.0-) 9.0 - 11.0 (-12.0) × (6.5-) 7.0 - 9.0 (-9.5) µm and are broadly ellipsoid to ellipsoid and inamyloid. Clamps are absent from the bases of basidia.
discussion	Originally described from Indonesia, this species also is found in tropical China.—Zhu L. Yang
brief editors	RET

name

Amanita ovalispora

author

Boedijn. 1951. Sydowia 5: 320, fig. 2(1).

name status

nomen acceptum

english name

"Boedijn's Oval-Spored Ringless Amanita"

MycoBank nos.

292456

GenBank nos.

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accession	locus	voucher	source

holotypes

BO (implicit, in liquid)

revisions

Z. L. Yang. 1997. Biblioth. Mycol. 170: 92, figs. 72-76.

intro

The following text may make multiple use of each data field.

The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material.

The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate.

Olive text indicates a specimen that has not been thoroughly examined (for example, for microscopic details) and marks other places in the text where data is missing or uncertain.

The following material not derived from the protolog of the present taxon is based upon cited research by ZLY and colleagues.

NOTE: Spore measurements from papers by Z. L. Yang use his "Times New Roman" face for "Q" and "Q'"—respectively, "Q" and "Q."

lamella edge tissue

from protolog: inflated cells 15 - 30 μm long, globose to subglobose.

basidiospores

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from protolog: [-/-/-] 8 - 11 × 6 - 7 μm, (est. Q = 1.33 - 1.57; est. Q = 1.46), ellipsoid; apiculus sublateral (per figure); contents not described; color in deposit not recorded. "Most common dimensions 9 - 10 × 6 - 6.5 μm." [Note: Range of Q conservatively estimated in order to permit sporograph generation.—ed.]

from study of type, Yang (1997): [40/2/1] (8.0-) 8.5 - 10.0 (-10.5) × (6.0-) 6.5 - 7.5 (-8.0) μm, (Q = (1.19-) 1.25 - 1.42 (-1.47); Q = 1.32 ± 0.06).

Yang (1997): [162/6/6] (8.5-) 9.0 - 11.0 (-12.0) × (7.0-) 7.5 - 9.0 (-9.5) μm, (Q = (1.05-) 1.13 - 1.38 (-1.51); Q = 1.25 ± 0.08), broadly ellipsoid to ellipsoid, occasionally subglobose, inamyloid, colorless, hyaline, smooth, thin-walled; apiculus ca. 1.0 μm long.

Yang (2000): [29/1/1] (8.0-) 8.5 - 10.0 (-13.0) × (5.5-) 6.0 - 7.5 μm, (Q = (1.27-) 1.31 - 1.54 (-1.78); Q = 1.43 ± 0.11), hyaline, colorless, smooth, thin-walled, inamyloid, ellipsoid, infrequently broadly ellipsoid or elongate;.

Yang et al. (2001): [50/4/2] (8.0-) 8.5 - 10.5 (-11.0) × (6.5-) 7.0 - 8.5 (-9.0) μm, (Q = (1.08-) 1.11 - 1.37 (-1.46); Q = 1.24 ± 0.09), subglobose to broadly ellipsoid, occasionally ellipsoid, thin-walled, colorless, hyaline, inamyloid.

ecology

Solitary or in small groups. China: At 600 - 1750 m elev. In conifer and broadleaf forests with Pinus kesiya var. langbianensis.

material examined

from protolog: INDONESIA: JAVA—Bogor, Botanical Garden, iii.1925 van Overeem s.n. (holotype, BO, implicit, in liquid).

from study of type, Yang (1997): INDONESIA: JAVA—Bogor, Botanical Garden, iii.1925 van Overeem s.n. (holotype, BO, implicit, in liquid).

Yang (1997): CHINA: YUNNAN—Pu'er Prefecture - Jingdong Yi Autonomous County, Bian, 21.viii.1991 Z. L. Yang 1601 (HKAS 24161); Jinggu Dai and Yi Autonomous Co., Mengban, 21.viii.1991 G. Song 256 (HKAS 24152); Simao District, unkn. loc., 1.viii.1991 P. G. Liu 791 (HKAS 24159). Xishuangbanna Dai Autonomous Prefecture - Menghai Co., Mangao, 16.viii.1991 Z. L. Yang 1585 (HKAS 24160); Mengla Co., Menglun, 11.ix.1974 S. Y. Zeng s.n. (HKAS 1441), s.n. (HKAS 1458).

Yang (2000): CHINA: JIANGSU—Nanjing (sub-provincial) city - former city of Nanjing, Dr. Sun Yat-sen Mausoleum Nat. Pk., 14.vii.1936 S. C. Li (formerly "IBN 5808"; BPI 751435, as "Amanita vaginata").

Yang et al. (2001): CHINA: HAINAN—Ledong Li Autonomous Co. - Jianfengling, 2.ix.1999 X. L. Wu 20 (HKAS 34110), 3.ix.1999 X. L. Wu 19 (HKAS 34109).

citations

—R. E. Tulloss

editors

RET

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