Pseudobaeofflora cyanea, una nueva especie agaticoide de Cataluña. 
La primera cita de Pseudobaeospora en España parece pertenecer a una nueva especie. Se describe Pseudobaeospora cyanea  acompañada por fotografias en color y dibujos de los caracteres microscópicos, y se compara
con algunas especies europeas próximas (P. diehroa, P. palhdAha P. Pyrifera).The first record of Pseudobaenspora in Spain appeared to belong to a new species. Pseudobaeospora eyanea is described, accompanied by a colour photograph and une drawings of microscopic characters. A comparison is
made with related European species of Pseudobaeospora (P. diehroa,P. pailidifolia, P. pyrifera).Pseudobaeospora eanea,  una nova espècie agaricoide de Catalunya.  La primera cita de
Pseudobaeospora a Espanya ha resultat pertànyer a una nova espècie. Es descriu Pseudobaeospora cyanea acompanyada per fotografies en color i dibuixos dels caràcters microscòpics i es compara amb algunes espècies europeas properes (P. dichroa, P. pallichibbá P. Pyrifera)

August Rocabruna i Llavanera

Eef Arnolds

Manuel Tabarés Carriedo

Pseudobaeospora eanea,  una nova espècie agaricoide de Catalunya.  La primera cita de
Pseudobaeospora a Espanya ha resultat pertànyer a una nova espècie. Es descriu Pseudobaeospora cyanea acompanyada per fotografies en color i dibuixos dels caràcters microscòpics i es compara amb algunes espècies europeas properes (P. dichroa, P. pallichibbá P. Pyrifera).The first record of Pseudobaenspora in Spain appeared to belong to a new species. Pseudobaeospora eyanea is described, accompanied by a colour photograph and une drawings of microscopic characters. A comparison is
made with related European species of Pseudobaeospora (P. diehroa,P. pailidifolia, P. pyrifera).Pseudobaeofflora cyanea, una nueva especie agaticoide de Cataluña. 
La primera cita de Pseudobaeospora en España parece pertenecer a una nueva especie. Se describe Pseudobaeospora cyanea  acompañada por fotografias en color y dibujos de los caracteres microscópicos, y se compara
con algunas especies europeas próximas (P. diehroa, P. palhdAha P. Pyrifera)

Arnolds, Eef

Tabarés Carriedo, Manuel

Rocabruna i Llavanera, August

Hemeroteca Cientifica Catalana

Revista Catalana de Micologia, vol. 25: 65-70; 2003.	 65PSEUDOBAEOSPORA CIANEA, A NEW AGARIC SPECIESFROM CATALONIAEef ARNOLDS 1 , Manuel TABARES 2 and August ROCABRUNA 21.- Holthe 21, 9411 TN Beilen, The Netherlands2.- Societat Catalana de Micologia, carrer de la Marina, 94, 1 0, 40, E-08028 BarcelonaABSTRACT. Pseudobaeospora tyanea, a new agaric species from Catalonia. The first record ofPseudobaenspora in Spain appeared to belong to a new species. Pseudobaeospora eyanea is described,accompanied by a colour photograph and une drawings of microscopic characters. A comparison ismade with related European species of Pseudobaeospora (P. diehroa,P. pailidifolia, P. pyrifera).Key words: Basidiomycotina, Agaricales, Pseudobaeospora cyanea, taxonomy.RESUMEN. Pseudobaeofflora cyanea, una nueva especie agaticoide de Cataluña. La primera citade Pseudobaeospora en España parece pertenecer a una nueva especie. Se describe Pseudobaeosporacyanea acompañada por fotografias en color y dibujos de los caracteres microscópicos, y se comparacon algunas especies europeas próximas (P. diehroa, P. palhdAha P. pyrifera).Palabras clave: Basidiomycotina, Agaricales, Pseudobaeospora cyanea, taxonomiaRESUM. Pseudobaeospora eanea, una nova espècie agaricoide de Catalunya. La primera cita dePseudobaeospora a Espanya ha resultat pertànyer a una nova especie. Es descriu Pseudobaeosporacyanea acompanyada per fotografies en color i dibuixos dels caràcters microscópics i es compara ambalgunes espècies europeas properes (P. dichroa, P. pallichibbá P. pyrifera).Paraulas clau: Basidiomycotina, Agaricales, Pseudobaeospora cyanea, taxonomiaINTRODUCTIONThe genus Pseudobaeospora has been largely neglected by taxonomists for a long time. Until 1995,only two species were known from Europe, viz. (Quél.) Wasser and P. oligophylla (Sing.)Sing. (BAS, 1995). Recently, it was discovered that the number of European species is much larger.BAS (2002) distinguished 13 species and two provisionally defined ones. Almost all species areknown from only one or a few collections and seem to be very rare. Pseudobaeospora cyanea,described in this paper, is another addition to this genus and the first species of Pseudobaeosporarecorded from Spain.The genus Pseudobaeospora is mainly characterised by the combination of small, collybioidbasidiocarps, usually with pink, violaceous or lilac, occasionally whitish colours, small hyaline spores(<5,5 ¡.1m) that become often thick-walled and dextrinoid when mature and a pileipellis of repent toerect hyphae (cutis or trichodermium) (BAS, 1995). The spores become thick-walled and dextrinoidwhen mature. On the lamellae of fresh and dried basidiocarps usually only a limited number of thick-walled spores are present, in the studied basidiocarps of P. cyanea less than 10 %. In spore prints, onthe apex of the stipe and on the pileipellis, exclusively shed and therefore mature spores are found.That is why BAS (2002) advised to measure the size of the spores in preparations of the surface ofstipe and pileus instead of the lamellae. A spore print is, of course, a good alternative. However, in !P.cyanea we did not find any significant difference between size or shape of spores on the lamellae, inthe spore print and on the pileipellis.66	 Revista Catalana de Micologia, vol. 25: 65-70; 2003.Pseudobaeospora eyanea Arnolds, Tabarés et Rocabruna, spec. nov.Pileus 15-30 mm latus, primo campanulatus, demum convexus vel plano-convexus, postremoexpansus, frequenter margine revolutus, interdum umbonatus, non-striatus, purpureo-cyaneus velpurpureus, margine roseolus, siccus, tomentosus, interdum rugulosus, ad KOH 5% viridis.Lamellae adnexae, subconfertae, ventricosae, cremeae vel pallide incarnatae. Stipes 30-40 x 1-3mm, cylindraceus, brunneus vel purpureo-brunneus, apice pruinatus, basi strigosus. Caro concolor.Odor nullus.Sporae 4,0-5,546,5) x 3,3-4,044,8) pm, medium 4,5-4,8 x 3,4-3,5 pm, Q = (1,1)-1,2-1,5-(1,8),medium Q = 1,3-1,4, ellipsoideae vel ovoideae, interdum oblongae, initio tenuiter tunicatae etinamyloideae, demum crasse tunicatae et dextrinoideae, hyalinae. Basidia 20-26 x 5,0-6,5 pm, 4-(2) sporigera. Cheilocystidia infrequentia, 16-25 x 3,5-6,0 pm, subcylindracea vel clavata,interdum furcata vel lobata. Pleurocystidia nulla. Pileipellis trichodermiformis, ope KOH 5% viridicyanea, ex catenis cellularum 20-65 x 6,5-22 pm composita, elongatarum, ellipsoidearum velsubglobosarum. Caulocystidia 15-70 x 3,0-5,0 pm, filiformia, frequenter septata. Fibulaepresentes.Holotypus hic designatus: In locum Mas Llagostera dictum, prope Vidreres, Catalonia (NEHispania), 200 m s.m. sub Pinus pinaster, Arbutus unedo, et Erica arborea, leg. J. Carreras etM Tabarés, 6-11-2002, in herb. BCN-SCM B-4742 conservatus.Isotypus in herbario AH 30732 (Alcalá de Henares) conservatus.Pileus 15-30 mm broad, campanulate at first, then convex to plano-convex, finally flattened, oftenwith revolute margin, sometimes umbonate, purplish blue or purple (SEGUY: 633, 644) with palerpinkish margin, not striate, dry, velvety, sometimes slightly wrinkled. Lamellae adnexed, rathercrowded, thickish, ventricose, up to 4 mm broad, cream-coloured to beige or pale flesh-coloured.Stipe 30-40 x 1-3 mm, cylindrical, brown to purple-brown, at apex white pruinose, basal V4  part withstriking, white, strigose hairs, longer than diameter of stipe. Context in pileus very thin, concolorouswith surface. Smell and taste weak, not distinctive. Chemical reactions: Surface and context ofpileus discolouring green with KOH 5 %. Spore print white.Spores 4,0-5,5-(6,5) x 3,3-4,0-(4,8) on the average 4,5-4,8 x 3,4-3,5 Q = (1,1)-1,2-1,5-(1,8), Qav. = 1,3-1,4, predominantly (broadly) ellipsoid to ovoid, some ellipsoid-oblong, often intetrads, smooth, hyaline, mostly with oil-drop, becoming thick-walled when mature and thendextrinoid, also cyanophylic. Basidia 20-26 x 5,0-6,5 lam, clavate, offen flexuose, 4-spored or a few2-spored intermixed. Lamella edge heterogeneous, made up of basidia and scattered, ratherinconspicious cheilocystidia, 16-25 x 3,5-6,0 tim, subcylindrical to narrowly clavate, often flexuose,sometimes furcate or lobed. Pleurocystidia absent. Hymenophoral trama subregular, made up ofcylindrical and inflated elements. Pileipellis a trichodermium, made up of loosely entangled,ascending and erect hyphae with subcylindrical, elliptic, clavate and subglobose elements; terminalelements 20-65! x 6,5-22 tim, with blue-violet intracellular and encrusting pigment. Caulocystidia15-70 x 3,0-5,0 tim, filiform, often septate. Clamp-connections present in entire basidiocarp.Chemical reactions: cells of pileipellis turning blue-green in KOH 5 % and ammonia 5%.Píleo 15-30 mm de diámetro, acampanado al principio, después convexo o aplanado-convexo,finalmente aplanado, a menudo con el margen revoluto, a veces umbonado, azulado-purpúreo opúrpura (SEGUY: 633, 644) con el margen mas pálido rosado, no estriado, seco, aterciopelado, aveces ligeramente arrugado. Láminas adnatas, más bien densas, gruesas, ventrudas, de hasta 4 mmde anchura, de color crema a beige o carneo pálido. Estipe de 30-40 x 1-3 mm, cilíndrico, de pardo apardo purpúreo, en el ápice blanco pruinoso, en el 1/4 inferior muy hirsuto, blanco, con pelos demayor longitud que el diámetro del estipe. Carne del píleo escasa, del color de la cutícula. Olor ysabor poco notables.Reacciones químicas: Con KOH 5 %. la cutícula y la carne del píleo se decoloran, pasando al verde.Esporada blanca.Esporas 4,0-5,5 (6,5) x 3,3-4,0 (4,8) tim, de promedio 4,5-4,8 x 3,4-3,5 jm, Q = (1,1) 1,2 — 1,5 (1,8),Qm. = 1,3-1,4, predominantemente de elipsoidales a ovoides, a veces elipsoidales oblongas, lisas,Revista Catalana de Micologia, vol. 25: 65-70; 2003.	 67Goiepüee°91,ü@ee§09eeeeee()A @ oi 8EPseudobaempora cyallea Arnolds, Tabarés et Rocabnina (Holotypus). A: espore; B: basiclia; C: cheilocystidia;D: caulocystidia; E; pileipellis.68	 Revista Catalana de Micologia, vol. 25: 65-70; 2003.hialinas, la mayor parte gutuladas, con paredes gruesas cuando están bien maduras y entoncesdextrinoides, también cianófilas. Basidios 20-26 x 5,0-6,5 pm, claviformes, a menudo flexuosos,generalmente tetraspóricos, con unos pocos bispóricos entremezclados. Arista de las láminashetereogénea, con basidios y más raramente con muy escasos y dispersos queilocistidios, 16-25 x3,5-6,0 um, de subcilíndricos a estrechamente claviformes, a menudo flexuosos, a veces bifurcadosy lobulados. Pleurocistidios ausentes. Trama himenial subregular, con elementos cilíndricos ysubglobosos. Pileipelis en tricodermis, con hifas ascendentes, con elementos sub !cilíndricos,claviformes y subglobosos; terminaciones 20-65 x 6,5-22 um, con pigmento intracelular eincrustante azul-violáceo. Caulocistidios 15-70 x 3,0 — 5,0 pm, filiformes, a menudo septados.Fíbulas presentes en toda la fructificación. Reacciones químicas: las células de la pileipelisvolviendose de color azul-verde con KOH 5% y amoniaco 5 %.COLLECTION EXAMINED: Spain, Catalonia, Girona, La Selva, surroundings of Mas de Llagostera (UTM 31 T 04804622), alt. 200 m, on acidic, humus-rieb soil aboye granite, in forest with Pinus pinaster, Quercus suber, Arbutus unedoand Erica arborea, probably saprobic, 6-11-2002, leg. J. Carreras y M. Tabarés, BCN-SCM B4742; 13-11-2002, leg.A.M. Tarif) S. Tabarés y A. Rocabruna, BCN-SCM B4743.OBSERVATIONS. Following the revision of the genus Pseudobaeospora by BAS (2002),P. cyanea keys-out in a group of three species, characterised by a greenish discoloration of thepileipellis in KOH, comprising P. dichroa, P. pyrifera and P. pallidifolia. lt is interesting to note thatthis reaction was so far only observed in preparations of the pileipellis (BAS, 2002), but it appears tobe also detectable macroscopically as a green spot on the fresh pileus, at least in P. cyanea.Pseudobaeospora dichroa Bas differs from P. cyanea among other things in the reaction of thepileipellis with KOH, producing a rapidly dissolving red pigment before turning green, smallerspores and much darker lamellae. P. py«era Bas et L.G. Krieglst. has also darker, violaceous pinklamellae, considerably smaller, subglobose spores (2,8-3,7 x 2,6-3,5 pm) and broadly clavatecheilocystidia (BAS & KRIEGLSTEINER, 1998). The closest relative of our species seems to beP. pallidfolia Bas, Gennari et Robich, recently described from Italy (BAS et al., 1997). That speciesis similar in pale, cream-coloured pink lamellae and spore size: (4,0)-4,5-6,0-(7,0) x (2,5)-3,0-4,5um Pseudobaeospora cyanea differs in (1) the structure of the pileipellis, being a cutis with inflatedcells in P. pallidifolia; (2) presence of cheilocystidia (absent in P. pallidifolia), (3) brighter, blue-violet colour of the pileus, (4) presence of long strigose hairs at base of stipe and (5) possibly also inslightly larger basidiocarps.Another species of Pseudobaeospora, described from the Mediterranean area, is P. jamonii Bas,Lalli et Lonati (BAS et al., 2002). It is macroscopically readily distinct from P. cyanea in the lilac-violaceous colour of the lamellae and the absence of strigose hairs on the stipe. Microscopicaldifferences are, among other things, the smaller spores, measuring (3,0)-3,2-4,044,3) x 2,8-3,5 pm;the abundant, well-differentiated cheilocystidia and the more regular structure of the pileipellis thatis discolouring only pale green to greenish brown in KOH. P. jamonii was described from mixed,temperate mountain forests in Piemonte and Abruzzo, Italy.The collectors of Pseudobaeospora cyanea initially supposed that their fungus might belong to thegenus Dennoloma, mainly in view of the dextrinoid spores and the broad cells in the pileipellis. lt isremarkable that also Pseudobaeospora pallidifolia was considered to be a Dermoloma at first. Thegenus Dermoloma is characterised in the first place by the structure of the pileipellis, being a regularpluristratous hymeniderm, made up of densely packed subglobose and broadly clavate cells, 10-40tim broad (ARNOLDS, 1995). In addition, all European species known at present have brown andgrey colours (without violaceous and pink tones) and a farinaceous smell and taste.ACKNOWLEDGMENTSWe wish to thank F. Esteve-Raventós (Alcalá de Henares) and J. L1. Siquier (Inca) for their adviseand collaboration, and F. de Diego Calonge (Madrid) and G. Moreno (Alcalá de Henares) for theirhelp in sending relevant publications.Revista Catalana de Micologia, vol. 25: 65-70; 2003. 	 69Pseudobaeospora cyanea Arnolds, Tabarés et Rocabruna, SCMB4742Pseudobaeospora c:yanea Arnolds, Tabarés et Rocabruna, SCMB474370	 Revista Catalana de Micologia, vol. 25: 65-70; 2003.REFERENCESARNOLDS, E. 1995.- Dermoloma. In: C. Bas et al. (eds), Flora agaricina neerlandica 3: 30-34. Balkema, Rotterdam,Brookfield.BAS, C. 1995.- Pseudobaeospora. In: C. Bas et al. (eds), Flora agaricina neerlandica 3: 132-134. Balkema, Rotterdam,Brookfield.BAS, C. 2002.- A reconnaissance of the genus Pseudobaeospora in Europe 1. Persoonia 18: 115-122.BAS, C., A. GENNARI & G. ROBICH. 1997.- Pseudobaeospora pallidifolia Bas, Gennari et Robich. Una nuova speciedall'Italia. Rivista di Micologia 1997: 195-199.BAS, C. & L. KRIEGLSTEINER. 1998.- Pseudobaeospora pyrifera, a new species found in southem Germany and TheNetherlands. Z. Mykol. 64: 203-206.BAS, C., G. LALLI & G. LONATI. 2002.- Pseudobaeospora jamonii, una nuova specie in Italia. Micol. e Veget. Medit. 17:31-35.

Pseudobaeospora cyanea, a new agaric species from Catalonia

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Pseudobaeospora cyanea, a new agaric species from Catalonia

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