A new species of Lentinula (Agaricales) from Central America

Abstract

Lentinula aciculospora sp. nov. is described from a single Province in Costa Rica. Stature and habit of basidiomata of this species are similar to some other Lentinula taxa (i.e. L, edodes), but the elongate,cylindrical shape of basidiospores is a distinctive character of L. aciculospora. The mating system of L. aciculospora is tetrapolar as also found in other species of the genus, but this species is genetically isolated from L, boryana, and all morphological variants of L. edodes.

<i>Lentinula ixodes</i> comb. nov. (<i>Omphalotaceae</i>, <i>Agaricales</i>) including new records in Brazil

“…Although phylogenetically sister and sympatric, L. ixodes is sexually incompatible with L. raphanica , and is therefore a distinct biological species. Similar complete intersterility was found among L. boryana (Group-I), L. raphanica (Group-II), L. aciculospora , and L. edodes ( Mata & Petersen, 2000 ; Mata, Petersen, & Hughes, 2001 ). In contrast, L. lateritia , L. novaezelandiae , and L. edodes were found to interbreed with each other, and were therefore considered to constitute a single biological species ( Shimomura, Hasebe, Nakai-Fukumasa, & Komatsu, 1992 ; Guzmán et al, 1997 ).…”

“…Based on morphological and mating experiments, Guzmán, Salmones, & Tapia (1997) accepted L. boryana (mostly strains from Mexico) as different from L. edodes , but they considered this latter species should include L. novae-zelandiae and L. lateritia as synonyms considering biogeography and sexual intercompatibility. Mata and Petersen (2000) then described Lentinula aciculospora Mata & R.H. Petersen from Central America based on morphological and molecular data. Mata and Petersen (2001) evaluated the morphology of the type specimens of synonymous names under L. boryana sensu Pegler (species complex), and identified Armillaria raphanica Murrill as an independent Lentinula species.…”

The biogeographical speciations of shiitake Lentinula edodes and a new species Lentinula platinedodes sp. nov. found in Cat Tien, South Vietnam

“…(1998) [5], Hibbett (2001) [6], TrÞnh Tam KiÖt (1981) [8], Mata & Petersen (2000, 2001 [9,10], kÕt hîp tra cøu vµ so s¸nh trªn internet.…”

“…[9,10] vµ nhãm Hibbett (1995Hibbett ( , 1998 [4,5]. Râ rµng, loµi míi ë ViÖt Nam nh− lµ nh¸nh trung gian gi÷a dßng (lineage) §«ng b¸n cÇu vµ dßng T©y b¸n cÇu (h×nh 4, 5).…”

“…VÊn ®Ò lµ cÇn chØ ra ®−îc nh÷ng dÉn chøng cho thÊy nhãm ë T©y b¸n cÇu còng cã quan hÖ trùc tiÕp víi nhãm ë §«ng b¸n cÇu, v× trªn thùc tÕ chóng rÊt bÊt t−¬ng hîp [2,9]. NhiÒu dÉn liÖu thùc nghiÖm vÒ gi ¶i tr×nh tù nhiÒu gene (kÓ c ¶ gene tubulin, gene ty thÓ) còng ®−îc ¸p dông chøng tá qu¸ tr×nh ph©n hãa vµ mèi quan hÖ chAEt chÏ nµy [6,10,13,22]. HiÖn vÉn chØ lµ gi ¶ thiÕt r»ng chóng cã tae tiªn chung mµ ch−a cã dÉn liÖu thuyÕt phôc vÒ kh ¶ n¨ng quan hÖ trùc tiÕp.…”