Russula (Russulaceae) in western Himalaya 1: Two new species from subg. Russula

Phytotaxa ◽  
2017 ◽  
Vol 323 (3) ◽  
pp. 237 ◽  
Author(s):  
ANIKET GHOSH ◽  
KANAD DAS

A couple of forays to the temperate to subalpine regions of the western Himalaya uncovered two new species: Russula rajendrae and R. petersenii. Russula rajendrae (subg. Russula sec. Russula subsect. Russula), is characterized by a pale red to venetian pink or pastel red colored pileus with grayish yellow patches in the center, a white spore print, an acrid taste, and cystidia with variably shaped apices (capitate, rounded, moniliform, appendiculate or pointed) whereas, Russula petersenii (subg. Russula sec. Paraincrustatae subsect. Integrae), is characterized by a white pileus with pale yellow to light yellow patches and a concolorous stipe, white to yellowish white lamellae with 3 series of lamellulae, a white spore print, an acrid taste, basidiospores with isolated warts (sparsely connected in places), and different types of cystidial apices. Macro- and micromorphological descriptions together with illustrations and phylogenetic inferences are presented for both species. Allied taxa (endemic and extralimital) are also compared.

Phytotaxa ◽  
2021 ◽  
Vol 525 (2) ◽  
pp. 109-123
Author(s):  
BIN CHEN ◽  
JIE SONG ◽  
JIN-HUA ZHANG ◽  
JUN-FENG LIANG

Two new species of Russula are described and illustrated in this paper. Russula clavulus is recognised by a pale yellow pileus centre, white margin with tuberculate striation, white to pale lamellae with small pale yellow spots, white to light yellow spore print, subglobose to broadly ellipsoid spores with short or long ridges and hymenial cystidia on lamellae sides that are mainly subclavate or fusiform. Russula multilamellula is morphologically characterised by the brownish orange to hazel pileus centre and satin white to yellowish-white margin with brownish tinge, lamellulae that are usually irregular in length and often anastomosing with lamellae, subglobose to broadly ellipsoid spores with short or long ridges and clavate hymenial cystidia. The combination of morphological features and multigene phylogenetic analyses of ITS-nrLSU-RPB2-mtSSU data indicated that these two new taxa belong to Russula subg. Heterophyllidia sect. Ingratae.


Kew Bulletin ◽  
1987 ◽  
Vol 42 (2) ◽  
pp. 471 ◽  
Author(s):  
C. Grey-Wilson ◽  
B. M. Wadhwa

Zootaxa ◽  
2011 ◽  
Vol 2738 (1) ◽  
pp. 26 ◽  
Author(s):  
YUKIO IWATSUKI ◽  
KEI MIYAMOTO ◽  
KAZUHIRO NAKAYA ◽  
JIE ZHANG

The genus Platyrhina from the northwestern Pacific was reviewed, including a redescription and neotype proposal for Platyrhina sinensis (Bloch and Schneider 1801), and the description of two new species. Platyrhina limboonkengi Tang 1933 is relegated to the synonymy of P. sinensis, both species having two rows of hooked thorns on the mid-dorsum of the tail. Specimens previously widely identified as P. sinensis, but characterized by one row of such hooked thorns, represented an undescribed species, herein named Platyrhina tangi Iwatsuki, Zhang and Nakaya sp. nov. Platyrhina hyugaensis Iwatsuki, Miyamoto and Nakaya sp. nov., known from specimens limited primarily to the Hyuga Nada Sea, off Miyazaki, the Pacific coast of southern Japan, is similar to P. tangi in having one row of hooked thorns on the mid-dorsum of the trunk and tail, but differs in having larger hooked thorns, not encircled by light yellow or white pigment on the orbital, nape and scapular regions, and a pair of hooked thorns (absent in P. tangi) anteriorly on the scapular region. Nominal species are discussed and key to northwestern Pacific species of Platyrhina is provided.


Phytotaxa ◽  
2013 ◽  
Vol 130 (1) ◽  
pp. 25
Author(s):  
MICHAEL G. PIMENOV ◽  
EUGENE V. KLJUYKOV

Two new species, Zeravschania latifolia from Ghorat province of Afghanistan, and Z. kopetdaghensis from Turkmenistan, are described and illustrated. Zeravschania latifolia differs from the closely related Z. membranacea in having broadly ovate (not narrowly linear) terminal leaf segments, and pure white (not pale yellow) petals. Zeravschania kopetdaghensis differs from the related Z. stricticaulis in the life form (polycarpic vs. monocarpic), petiolate subbipinnate leaves, lobed terminal leaf segments, and shorter umbel rays. A study of newly determined collections in Ferdowsi University in Mashhad (FUMH) has enabled us to add to a description of Z. stricticaulis. In total, the genus numbers now 11 species. A new key to all Zeravschania species has been compiled. A distribution map of the genus is presented with known localities of the two new species.


Phytotaxa ◽  
2018 ◽  
Vol 349 (2) ◽  
pp. 185
Author(s):  
ADAM P. KARREMANS ◽  
JOSÉ ESTEBAN JIMÉNEZ

Two new species of Pleurothallis are described from the Cordillera de Guanacaste in northern Costa Rica. Both novelties belong to Pleurothallis sect. Macrophyllae-Fasciculatae, among which they can be recognised by their fasciculate inflorescence with numerous simultaneously produced flowers, a rare feature in the species-rich group. This feature is shared with Pleurothallis bothros, putatively their closest relative. Both novelties may be distinguished from that species by their non-spreading (vs. spreading), pale yellow to pinkish flowers (vs. green) and broad, oblique petals (vs. narrow, straight). Pleurothallis hawkingii can be easily distinguished from Pleurothallis vide-vallis by its broader panduriform lip with raised margins and depressed basal glenion (vs. narrow lanceolate lip, lacking raised margins, with the glenion raised on a high basal callus).


Phytotaxa ◽  
2021 ◽  
Vol 500 (4) ◽  
pp. 253-265
Author(s):  
KOMAL VERMA ◽  
TAHIR MEHMOOD ◽  
PRIYANKA UNIYAL ◽  
RUPAM KAPOOR ◽  
YASH PAL SHARMA

Two new species of genus Lactarius from India, Lactarius sarthalanus (L. subg. Plinthogalus) and L. drassinus (L. subg. Lactarius) are presented with detailed descriptions, line drawings and microphotographs. The novelty and placement of these taxa within the genus Lactarius are confirmed with ITS based phylogeny.


2021 ◽  
Author(s):  
Bin Chen ◽  
Jie Song ◽  
Jun Feng Liang ◽  
Yang Kun Li

Abstract Two new species from southern China, Russula subpunicea and R. albolutea, were described and illustrated. Russula subpunicea is characterized by a pinkish to dark pink pileus with striations at the margin, white lamellae without lamellulae, subglobose to broadly ellipsoid to ellipsoid basidiospores with warts and spines sometimes joined to form a reticulum, hymenial cystidia that are mainly clavate, a suprapellis mainly composed of chains of short inflated cells with attenuated terminal cells and pileocystidia that are mainly clavate and turn reddish in sulfovanillin. Russula albolutea is recognized by a yellowish white pileus with long striations at the margin, a white stipe with a yellowish tinge, subglobose to broadly ellipsoid to ellipsoid basidiospores, hymenial cystidia that are mainly clavate and apically often obtuse and turn mauve in sulfovanillin, and a suprapellis mainly consisting of chains of short inflated cells with attenuated terminal cells. In this study, we performed phylogenetic analysis based on the ITS-nrLSU-RPB2-mtSSU dataset. By combining detailed morphological features with multigene phylogenetic evidence, we assigned the new taxa to Russula subsect. Virescentinae.


MycoKeys ◽  
2021 ◽  
Vol 85 ◽  
pp. 109-125
Author(s):  
Ting Li ◽  
Wang-Qiu Deng ◽  
Bin Song ◽  
Ming Zhang ◽  
Mu Wang ◽  
...  

Two new Phallus species, P. cremeo-ochraceus and P. rigidiindusiatus were discovered in southwestern and southern China, respectively. Phallus cremeo-ochraceus is morphologically characterized by its cream to ochraceous receptacle, white to very slightly pinkish indusium, white to pinkish pseudostipe and white to slightly purplish pink volva. Phallus rigidiindusiatus is characterized by a white to yellowish white receptacle, a strongly rigid indusium usually without serrated margin and smaller basidiospores than those of P. serratus. Phylogenetic positions of the two species are located in two independent lineages respectively. Detailed descriptions, color photographs, illustrations and a key to the related species are presented.


Phytotaxa ◽  
2019 ◽  
Vol 403 (2) ◽  
pp. 111
Author(s):  
NOPPARAT WANNATHES ◽  
NAKARIN SUWANNARACH ◽  
JATURONG KUMLA ◽  
SAISAMORN LUMYONG

Two new species of Marasmius secton Sicci are described based on field work conducted in Phu Hin Rong Kla National Park, Thailand. Marasmius thailandicus is characterized by small, thin yellowish white basidiomes, ellipsoid basidiospores and dimorphic caulocystidia. Marasmius rongklaensis is distinguished by a conical, velutinous pileus, ellipsoid basidiospores, dimorphic cheilocytidia and pileipellis a hymeniderm with pileosetae. Comprehensive description along with illustrations, photographs, and a comparison with phenetically similar taxa are provided. The taxonomic position has been confirmed by phylogenetic analyses of the internal transcribed spacer (ITS1-5.8S-ITS2) sequences of the ribosomal DNA.


Phytotaxa ◽  
2019 ◽  
Vol 391 (3) ◽  
pp. 207 ◽  
Author(s):  
MILAN C. SAMARAKOON ◽  
JIAN-KUI (JACK) LIU ◽  
KEVIN D. HYDE ◽  
ITTHAYAKORN PROMPUTTHA

Amphisphaeria flava and A. thailandica sp. nov. collected from dead woody branches in northern Thailand, are described and illustrated in this study. Both taxa share ascomata with a brown outer peridium and 1-septate brown ascospores in uniseriate asci. Amphisphaeria flava is characterized by a pale yellow host surface around the ostiole, a comparatively thin peridium and multi-guttulate mature ascospores. Amphisphaeria thailandica is characterized by subglobose to oval ascospores. Maximum parsimony, maximum likelihood and Bayesian inference analyses of a combined LSU and ITS DNA sequence matrix shows that A. flava and A. thailandica are distinct from other Amphisphaeria species (with molecular data available) in family Amphisphaeriaceae. A key to accepted Amphisphaeria species is provided.


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