全 文 ：菌 物 学 报 24（1）：143~144, 2005
Mycosystema
STROBILOMYCES MIRANDUS, A SPECIES NEW TO CHINA
GE Zai-Wei1, 2 YANG Zhu-Liang1
(1Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204; 2Graduate School of the Chinese Academy of
Sciences, Beijing 100039)
松塔牛肝菌属中国一新记录种——黄纱松塔牛肝菌
葛再伟 1，2 杨祝良 1
（1中国科学院昆明植物研究所 昆明 650204; 2中国科学院研究生院 北京 100039）
Strobilomyces is one of the most common genera in the subtropical and tropical areas (Singer, 1986). To
date, about 20 species have been reported in China (Ying & Ma, 1985; Ying, 1987; Zang, 1997; Wen & Ying,
2001; Huang, 2002). Here we report a new record discovered in the survey of the specimens deposited in HKAS
(Herbarium of Cryptogams, Kunming Institute of Botany of the Chinese Academy of Sciences). In the
description, macro-morphology is based on the field notes and color slides of the materials; micro-morphology
is based on observation of the materials under microscope. For microscopic studies, 5% KOH was used as
mounting medium to rehydrate the tissue. For the size of the basidiospore, the reticulum is not included. The
abbreviation n/m/p means n basidiospores measured from m fruitbodies of p collections. The notation of the
form (a) b–c (d) stands for the dimensions of basidiospores; the range b–c contains a minimum of 90% of the
measured values, a or d given in parentheses stands for extreme values. Q is used to mean “length/width ratio”
of a basidiospore in side view; Q means average Q of all basidiospores ± sample standard deviation.
Strobilomyces mirandus Corner, Boletus in Malaysia: 61, 1972.
Pileus convex, 2.5-6.0 cm in diam., dry, golden tawny to brownish yellow, becoming brown to blackish
when over mature, covered with yellowish or brownish, then blackish, felty to verrucose, conical or patched
squamules; pileal margin appendiculate with yellow to dull yellow veil remnants. Hymenophore adnate to
subdecurrent, surface white to greyish pink when mature, but becoming grey-brown to dark brown with reddish
tinge on bruising; pores angular, 1-2 pores per mm. Stipe central, 6-10 × 0.5-0.8 (1.2) cm, subcylindrical,
sometimes somewhat expanded toward the base, whitish to yellowish, upper half shallowly reticulate, covered
with yellowish or brownish squamules or fibrils which often form an upper rudimental ring. Context of pileus
and stipe whitish but turning rubescent then black when cut; oder indistinct.
Basidia 27–45 ´ 16–19 µm, clavate, 4-spored; sterigmata 3-4 µm long. Basidiospores [43/3/3] (7.0–) 7.5–
8.5 ´ (6.0–) 6.5–7.5 µm, [Q = 1.13–1.23(–1.25), Q = 1.18 ± 0.04], subglobose to broadly ellipsoid in side or
ventral view, yellowish brown in KOH, covered with complete reticulum (about 1 µm in height); meshes
angular, 1-2.5 µm in diam; plage proportionally large, nearly smooth, without reticulum. Pleurocystidia
abundant, fusiform to subfusiform (33–49 ´ 13.5–19 µm), with a subacute apex or a short obtuse appendage,
thin-walled, often with fuscous contents. Cheilocystidia numerous, mostly subfusiform to subclavate (32–45 ´
15–17 µm), rarely with a subacute apex, thin-walled, hyaline to slightly brownish. Squamules on pileus
composed of slightly thick-walled, seldom branching, slightly interwoven filamentous hyphae, which are more

Supported by the Ministry of Science and Technology of China (No. 2001DEA10009-10)
收原稿日期：2004-06-20，收修改稿日期：2004-09-06
DOI:10.13346/j.mycosystema.2005.01.024
144 菌 物 学 报 24卷

or less perpendicular to the surface of the pileus, often with yellowish to brownish vacuolar pigment; the end
cells cylindrical to narrowly clavate, 35-85 ´ 7-15 µm.
Habit, habitat, and distribution: Solitary to scattered in humus under trees of Lithocarpus in tropical to
southern subtropical forests in southwestern Yunnan, China, at 1200–1700 m elev. Described from Malaysia.
New to China.

Speciemens examined: China. Yunnan Province: Yingjiang County, in the vicinity of Tongbiguang, alt.
1400 m, growing under trees of Lithocarpus, 13 July 2003, Z. L. Yang 3653 (HKAS 42847); Tengchong County,
Qushi, alt. 1700 m, growing under trees of Lithocarpus, 23 July 2003, L. Wang 228 (HKAS 43322); Longchuan
County, Menggong, alt. 1200 m, in a tropical monsoon forest, 23 July 2003, H. Luo 33 (HKAS 43572).
Remarks: Strobilomyces mirandus is characterized by its brownish yellow to golden tawny basidiocarp,
reticulate basidiospores, and shortly beaked pleurocystidia (Corner, 1972). The color of the pileus surface, the
squamules on the pileus and the surface of the stipe are golden tawny to yellowish when young, but usually
become darker when over mature. However, the veil remnants hanging on the pileal margin remain yellow to
dull yellow even over mature according to our field observations.
Strobilomyces sanmingensis, described from central Fujian of southeastern coastal China by Huang (2002),
is very close to S. mirandus if they are not conspecific.
[REFERENCES]
Corner E J H, 1972. Boletus in Malaysia. Government Printing Office. Singapore: Upper Serangoon Road. 56~65
Huan N L, 2002. Ａ new species of Strobilomyces from China. Mycosystema, 21 (1): 6~8
Singer R, 1986. The Agaricales in Modern Taxonomy. 4th ed. Koeltz Scientific Books. Germany: Koenigstein. 1~981
Wen H A, Ying J Z, 2001. Supplementary notes on the genus Strobilomyces from China II. Mycosystema, 20 (3): 297~300
Ying J Z, 1987. Supplementary notes on the genus Strobilomyces from China. Acta Mycol Sinica, Suppl. I: 305~308.
Ying J Z, Ma Q M, 1985. New taxa and records of the genus Strobilomyces in China. Acta Mycol Sinica, 4 (2): 95~102
Zang M, 1997. Taxonomy, mycogeography and ecto-mycorrhizal association of the Boletales from China I. Family
Strobilomycetaceae. Mycosystema, 16 (4): 264~269
Fig. 1-5 Strobilomyces
mirandus
1. Basidiocarps;
2. Basidia and
pleurocystidia;
3.Cheilocystidia;
4. Basidiospores;
5. Apical part of a
squamule on the pileus