A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia
Описано новий вид роду Pachykytospora — P. wasseri, знайдений у тіньових широколистя-них лісах Жигулів (Росія, Самарська обл.). Обговорюються подібності і відмінності P. wasseri з близькими видами роду. Також дається бібліографія з роду Pachykytospora....
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| Zitieren: | A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia / I.V. Zmitrovich, V.F. Malysheva, W.A. Spirin // Укр. ботан. журн. — 2007. — Т. 64, № 1. — С. 42-46. — Бібліогр.: 7 назв. — англ. |
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irk-123456789-38242009-07-13T12:00:49Z A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia Zmitrovich, I.V. Malysheva, V.F. Spirin, W.A. Спорові рослини та гриби Описано новий вид роду Pachykytospora — P. wasseri, знайдений у тіньових широколистя-них лісах Жигулів (Росія, Самарська обл.). Обговорюються подібності і відмінності P. wasseri з близькими видами роду. Також дається бібліографія з роду Pachykytospora. Описан новый вид рода Pachykytospora — P. wasseri, обнаруженный в теневых широколиственных лесах Жигулей (Россия, Самарская обл.). Обсуждаются сходства и различия P. wasseri с близкими видами рода. Дается также библиография по роду Pachykytospora. 2007 Article A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia / I.V. Zmitrovich, V.F. Malysheva, W.A. Spirin // Укр. ботан. журн. — 2007. — Т. 64, № 1. — С. 42-46. — Бібліогр.: 7 назв. — англ. 0372-4123 http://dspace.nbuv.gov.ua/handle/123456789/3824 en Інститут ботаніки ім. М. Г. Холодного НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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English |
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Спорові рослини та гриби Спорові рослини та гриби |
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Спорові рослини та гриби Спорові рослини та гриби Zmitrovich, I.V. Malysheva, V.F. Spirin, W.A. A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| description |
Описано новий вид роду Pachykytospora — P. wasseri, знайдений у тіньових широколистя-них лісах Жигулів (Росія, Самарська обл.). Обговорюються подібності і відмінності P. wasseri з близькими видами роду. Також дається бібліографія з роду Pachykytospora. |
| format |
Article |
| author |
Zmitrovich, I.V. Malysheva, V.F. Spirin, W.A. |
| author_facet |
Zmitrovich, I.V. Malysheva, V.F. Spirin, W.A. |
| author_sort |
Zmitrovich, I.V. |
| title |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| title_short |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| title_full |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| title_fullStr |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| title_full_unstemmed |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia |
| title_sort |
new pachykytospora (basidiomycota, polyporales) from zhiguli, european russia |
| publisher |
Інститут ботаніки ім. М. Г. Холодного НАН України |
| publishDate |
2007 |
| topic_facet |
Спорові рослини та гриби |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/3824 |
| citation_txt |
A new Pachykytospora (Basidiomycota, Polyporales) from Zhiguli, European Russia / I.V. Zmitrovich, V.F. Malysheva, W.A. Spirin // Укр. ботан. журн. — 2007. — Т. 64, № 1. — С. 42-46. — Бібліогр.: 7 назв. — англ. |
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AT zmitrovichiv anewpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia AT malyshevavf anewpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia AT spirinwa anewpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia AT zmitrovichiv newpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia AT malyshevavf newpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia AT spirinwa newpachykytosporabasidiomycotapolyporalesfromzhigulieuropeanrussia |
| first_indexed |
2025-07-02T07:02:48Z |
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2025-07-02T07:02:48Z |
| _version_ |
1836517707908907008 |
| fulltext |
ISSN 0372-4123. Ukr. Botan. Journ., 2007, vol. 64, ¹ 142
I.V. ZMITROVICH1, V.F. MALYSHEVA1,
W.A. SPIRIN2
1 V.L. Komarov Botanical Institute,
Russian Academy of Sciences
2 Popov St., St. Petersburg, 197376, Russia
verama@yandex.ru; iv_zmitrovich@mail.ru
2 University of the Humanities
15 Fuchika St., St. Petersburg, 192238, Russia
slava_spirin@mail.ru
A NEW PACHYKYTOSPORA SPECIES
(BASIDIOMYCOTA, POLYPORALES)
FROM ZHIGULI, EUROPEAN RUSSIA
Key words: Basidiomycetes, Polyporales, broad-leaf forests,
Pachykytospora wasseri, new species
The genus Pachykytospora Kotl. et Pouzar [4] unites some prostrate pore fungi having
Polyporus-like skeleto-binding hyphae and uneven ellipsoid basidiospores, which
are characterized by rather longitudinal arrangements of the crests. The last feature
as well as the basidiocarp resupinate trait distinctly mark the differences between
the genus Pachykytospora from the closely related Haploporus, albeit some authors
[1, 6] do not make these distinctions between the genera. According to many
reasonable yet narrow concepts, the genus Pachykytospora includes nine species
[1, 2, 5, 7] having south-temperate to tropical distribution. All of them are clearly
distinguishable according to spore sizes, dextrinoid reaction of skeletals, anatomy
of dissepiment edge, and some features of pore surface.
Being a key nemoral refugium, Zhiguli broadleaved forests (Samara Region,
Russia) reveal many floristic novelties. In particular, there is an unusual fungus
with sufficient Pachykytospora characteristics described here. This fungus is so unique
that it certainly requires independent species status. Its detailed description and
discussion are given below.
Pachykytospora wasseri Zmitr., V. Malysheva et Spirin sp. nov. — see Figure.
Basidiomata annua, prostrata, late effusa (ad 10 cm diam.), fibrosa ad coriaceo-
chartacea. Margo effusus, tenuis, sterilis ad fertilis, albidus ad flavido-ochraceus,
gelatinescens. Hymenophorum tubulosum, leniter nodulosum, facies pororum albida
ad cremea, deinde flavo-brunnescens, pori (1)2—4 per mm, irregulariter collocati,
circulati ad subsinuosi, tenuitunicati. Subiculum 0.5—1 mm crassis, cremeum,
fibrillosum. Tubuli obscure bistratosi, 2—5 mm longae, cremei ad ochracei.
Systema hypharum dimiticum. Hyphae ligativo-sceletales 2—2.6 µm diam.,
leniter dextrinoideae cyanophiliesque. Hyphae generatoriae fibulatae, hyalinae, 1.5—
2.5 µm in diametro. Basidia 13—24 × 5—7.5 µm, clavata, tetrasporifera, basi fibulata.
Basidiosporae (7.8)8—9(10.4) × 3.9—5.2 µm [Q = (1.5)1.7—1.9(2.7); Qm = 1.9],
© I.V. ZMITROVICH, V.F. MALYSHEVA, W.A. SPIRIN, 2007
ISSN 0372-4123. Óêð. áîòàí. æóðí., 2007, ò. 64, ¹ 1 43
ellipsoideae, leviter truncatae,
lineariter tuberculosae, leniter
dextrinoideae, cyanophilae.
Aleuria adsunt in trama,
fusoidea ad brevicylindracea,
12—25 × 3—6 µm, guttulata.
Holotypus:Russia, Samara
Reg., Stavropol Dist., Zhiguli
Nat. Res., Padus avium,
12.09.2006, V.F. Malysheva,
E.F. Malysheva, I.V. Zmitro-
vich, Isotypus — LE 214872.
Basidiomata annual,
prostrate, largely effused along
bark (up to 10 cm in diam.),
fibrous to coriaceous or creta-
ceous. Margin effuse, thin,
firstly sterile, white, later fertile, with lemon to ochraceous tints, slightly
gelatinized. Pore surface uneven, weakly nodulose, firstly white with creamish
stains, then cream with gelatinized bright-yellow (or lemon-yellow) patches;
pores (1)2—4 per mm, of irregular shape, round to slightly sinuous and open in
oblique positions, rather thin-walled. Section: subiculum 0.5—1 mm thick, pale
cream, fibrous; tubes indistinctly two-layered (both layers are of the same season;
growing layer was slightly turned due to fall of trunk), 2—5 mm thick, cream to
yellowish-ochraceous, partly agglutinated. Odor absent; taste bitter (reminiscent
of Oligoporus stipticus).
Hyphal system dimitic. Skeleto-binding hyphae dominating in all parts of
basidiocarp, thick-walled, yellowish in IKI, weakly cyanophilous, 2—2.6 µm wide, tightly
interwoven in subiculum, and densely packed in tube trama. Generative hyphae clamped,
hyaline, 1.5—2.5 µm wide. Basidia 13—24 × 5—7.5 µm, clavate, 4-spored, fibulate at
the base. Basidiospores (7.8)8—9(10.4) × 3.9—5.2 µm [Q = (1.5)1.7—1.9(2.7); Qm =
1.9 — see table 1], ellipsoid, indistinctly to clearly truncate, minutely rough due to
tuberculate exospore with linear arrangement of tubercles, hyaline with irregular oil-
drops, weakly dextrinoid, strongly cyanophilous. Aleuria generating in tube trama, fusoid
to barrel-shaped, 12—25 × 3—6 µm, guttulate.
Pachykytospora wasseri (Holotypus).
A — basidiome outline from the
pore surface (scale bar = 5 mm);
B — micromorphology details: 1 —
basidioles, 2 — basidiospores, 3 —
skeleto-binding hyphae, 4 — aleuria
(scale bar = 10 µm)
ISSN 0372-4123. Ukr. Botan. Journ., 2007, vol. 64, ¹ 144
Etymology. The species epithet is given in honor of the great connoisseur of
agaricoid and ganodermoid fungi, Prof. Solomon P. Wasser, on his 60th birthday.
Affinities. The closest relatives of newly described species are Pachykytospora
tuberculosa and P. subtrametea. However, there are clear differences between
mentioned species as well (table 2). P. wasseri has pores sufficiently larger than in
P. subtrametea, but they are appreciably finer than the pores in P. tuberculosa (the
pores exceed 1 mm wide in many cases). Similarly to P. tuberculosa, a new species
is characterized by dextrinoid skeletals (albeit coloration is paler); however, its spore
sizes and basidiome consistency sharply differ from those of P. tuberculosa. The spore
characteristics of P. wasseri are closer to those of P. subtrametea, but the spores of
P. wasseri have steadily larger spore quotients, i.e., they are longer on their
longitudinal axes. Moreover, the spores of P. wasseri are slightly dextrinoid — this
feature was not mentioned for P. subtrametea [5].
Discussion. The analysis of distribution of the Pachykytospora species shows a
certain disjunction between European quercicolous P. tuberculosa and Asian
Table 1. Spore variability of Pachykytospora wasseri
L × W Q L × W Q L × W Q
9.5 × 5.5 1.7 8 × 3.9 2.1 9.1 × 4.9 1.9
10.3 × 5.5 1.9 7.8 × 4.9 1.6 8 × 3.4 2.4
9 × 5.7 1.6 8.3 × 3.4 2.4 9.9 × 4.9 2.0
10.3 × 5.3 1.9 7.8 × 4.7 1.7 9.1 × 4.2 2.2
8.6 × 5.5 1.6 7.8 × 5.2 1.5 7.8 × 3.4 2.3
10 × 5.5 1.8 9.9 × 5.2 1.9 10.4 × 3.9 2.7
9.5 × 5.5 1.7 7.8 × 3.6 2.2 8.3 × 5.2 1.6
9 × 5.6 1.6 10.4 × 4.7 2.2 8 × 4.9 1.6
8.6 × 5.5 1.6 9.6 × 3.9 2.5 8.3 × 3.9 2.1
10.4 × 5.2 2.0 7.8 × 4.2 1.9 8 × 5.2 1.5
Note: L — spore length, W — spore wide, Q — spore quotient (Q = L / W)
Table 2. Comparison of characters in species of Pachykytospora concerned
Diagnostical features P. tuberculosa P. wasseri P. subtrametea
Basidiome consistency suberose coriaceous coriaceous
Pores per 1 mm 0.4—2 1—4 3—5
Dextrinoid reaction of
skeletals strong fine absent
Spore dimensions, µm (9)10—14 × 4.6—7.0 (7.8)8—9(10.4) × (7.9)8.1—10.5(11) ×
× 3.9—5.2 × (4.5)5—6.3(7)
Qm 1.89 1.90 1.68
Substrata Quercus, rarely Castanea, Padus avium Padus asiatica, Salix
Crataegus, Malus, Fagus sp., Tilia amurensis
ISSN 0372-4123. Óêð. áîòàí. æóðí., 2007, ò. 64, ¹ 1 45
P. subtrametea. The only known locality of P. wasseri is near the eastern distribution
limits of P. tuberculosa (southern Urals) and outside of the westernmost boundaries
of the P. subtrametea areal (West Siberia). Only a little could be said on ecology of
P. wasseri. Evidently, it is comparable in its preferences with its sib P. subtrametea,
preferring shadowy broadleaved forests, where it occupies drying and just fallen trunks
and thick branches of deciduous wood. Like other Pachykytospora species, P. wasseri
is a white-rot fungus causing intensive decay of adjacent wood.
Additional material examined. Pachykytospora alabamae (Berk. et Cooke)
Ryvarden — H.W. Ravenel, Fungi Americani Exsiccati, Georgia, Florida,
S. Carolina, LE 30759; Georgia, St. Simons Island, on hardwood shrub, 04.08.1950,
J.L. Lowe, LE 210073.
P. papyracea (Schwein.) Ryvarden — H.W. Ravenel, Fungi Americani Exsiccati,
Georgia, Florida, S. Carolina, LE 30822.
P. tuberculosa (Fr.) Kotlaba et Pouzar — Stockholm, Djurgarden, on the under-
side of dead, still-attached branches of live Quercus robur, 28.01.1894, L. Romell,
LE 31873; Ukraine, Crimea, «Crimsky reserve», on fallen Q. robur, 09.09.1937,
A. Bondartsev, LE 31872, LE 31881; Ibid., on fallen Q. pubescens, 01.09.1956,
L. Vassilieva, A. Bondartsev, LE 31885; Ukraine, Zakarpatye, on fallen Fagus
sylvatica, 11.08.1956, E. Parmasto, LE 31883; Hungari, Prencow, on Quercus sp.,
18.09.1897, A. Kmet, A. Bondartsev, LE 208305; Belarus, «Belovezhskaya pushcha»
reserve, on trunks of Q. robur, 10.09.1966, M. Bondartseva, P. Mikhalevich, LE
31887, LE 31886; Aserbaijan, on dry branches of Tilia sp., 1949, G. Ibrahimov,
A. Bondartsev, LE 31879.
1. Dai Y.C., Niemelä T., Kinnunen J. The polypore genera Abundisporus and Perenniporia
(Basidiomycota) in China, with notes on Haploporus // Ann. Bot. Fenn. — 2002. — 39. —
P. 169—182.
2. David A., Rajchenberg M. West African polypores: new species and new combinations //
Mycotaxon. — 1992. — 45. — P. 131—148.
3. Hattori T., Adhikari M.K., Suda T., Doi Y. A list of polypores (Basidiomycotina, Aphyllophorales)
collected in Jumla, Nepal // Bull. Nat. Sci. Mus., Tokyo. Ser. B. — 2002. — 28. — P. 27—38.
4. Kotlaba F., Pouzar Z. A new genus of the polypores — Pachykytopsora gen. nov. // Èeská
Mykol. — 1963. — 17. — P. 27—34.
5. Kotlaba F., Pouzar Z. An interesting Asian polypore Pachykytospora subtrametea // Èeská
Mykol. — 1979. — 33. — P. 129—133.
6. Pi¹tek M. Taxonomic position and world distribution of Pachykytospora nanospora
(Polyporaceae) // Ann. Bot. Fenn. — 2005. — 42. — P. 23—25.
7. Ryvarden L. A critical checklist of the Polyporaceae in tropical East Africa // Norw. J. Bot. —
1972. — 19. — P. 229—238.
Recomended for publication Submitted 06.11.2006
By A.S. Buchalo
ISSN 0372-4123. Ukr. Botan. Journ., 2007, vol. 64, ¹ 146
².Â. Çìèòðîâè÷1, Â.Ô. Ìàëèøåâà1, Â.À. Ñï³ð³í2
1 Áîòàí³÷íèé ³íñòèòóò ³ì. Â.Ë. Êîìàðîâà ÐÀÍ, ì. Ñàíêò-Ïåòåðáóðã
2 Ñàíêò-Ïåòåðáóðçüêèé Ãóìàí³òàðíèé óí³âåðñèòåò ïðîôñï³ëîê
ÍÎÂÈÉ ÂÈÄ ÐÎÄÓ PACHYKYTOSPORA (BASIDIOMYCOTA,
POLYPORALES) ²Ç ÆÈÃÓ˲ (ªÂÐÎÏÅÉÑÜÊÀ ÐÎѲß)
Îïèñàíî íîâèé âèä ðîäó Pachykytospora — P. wasseri, çíàéäåíèé ó ò³íüîâèõ øèðîêîëèñòÿ-
íèõ ë³ñàõ Æèãóë³â (Ðîñ³ÿ, Ñàìàðñüêà îáë.). Îáãîâîðþþòüñÿ ïîä³áíîñò³ ³ â³äì³ííîñò³
P. wasseri ç áëèçüêèìè âèäàìè ðîäó. Òàêîæ äàºòüñÿ á³áë³îãðàô³ÿ ç ðîäó Pachykytospora.
Ê ë þ ÷ î â ³ ñ ë î â à: Basidiomycetes Polyporales, øèðîêîëèñòÿí³ ë³ñè, Pachykytospora
wasseri, íîâèé âèä
È.Â. Çìèòðîâè÷1, Â.Ô. Ìàëûøåâà1, Â.À. Ñïèðèí2
1 Áîòàíè÷åñêèé èíñòèòóò èì. Â.Ë. Êîìàðîâà ÐÀÍ, ã. Ñàíêò-Ïåòåðáóðã
2 Ñàíêò-Ïåòåðáóðãñêèé Ãóìàíèòàðíûé óíèâåðñèòåò ïðîôñîþçîâ
ÍÎÂÛÉ ÂÈÄ ÐÎÄÀ PACHYKYTOSPORA (BASIDIOMYCOTA,
POLYPORALES) ÈÇ ÆÈÃÓËÅÉ (ÅÂÐÎÏÅÉÑÊÀß ÐÎÑÑÈß)
Îïèñàí íîâûé âèä ðîäà Pachykytospora — P. wasseri, îáíàðóæåííûé â òåíåâûõ øèðîêîëè-
ñòâåííûõ ëåñàõ Æèãóëåé (Ðîññèÿ, Ñàìàðñêàÿ îáë.). Îáñóæäàþòñÿ ñõîäñòâà è ðàçëè÷èÿ
P. wasseri ñ áëèçêèìè âèäàìè ðîäà. Äàåòñÿ òàêæå áèáëèîãðàôèÿ ïî ðîäó Pachykytospora.
Ê ë þ ÷ å â û å ñ ë î â à: Basidiomycetes Polyporales, øèðîêîëèñòâåííûå ëåñà, Pachykyto-
spora wasseri, íîâûé âèä
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