81 resultados para Orton


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Hyla claresignata Lutz & Lutz, 1939, is a large species apparently not closely allied to the other known Brazilian hylas. It is characterized by the very small tympanum; the head is short and the snout rounded; the legs are long, the hands and feet unusually large, the latter extensively webbbed. The specific name is derived from the insular, irregular, or roughly triangular, dark spots, with a light halo, found mostly in the dorso-lateral region and on the legs. It belongs to the rain-forest fauna of the Marítime Range. The adult is a bromeliad-dweller and the tadpole rhyacophilous. DESCRIPTION. Vomerine teeth in two separate, oblique, groups, behind the large choanae, parallel to the posterior half of their inner border. Tongue entire, short, very broad and hardly free behind. Snout short, rounded, with distinct canthus rostralis and gradually sloping loreal region. Eye very large and prominent, its horizontal diameter almost equal to the distance between its anterior corner and the tip of the snout. Tympanum very small, less than one third of the diameter of the eye, but distinct, partly covered by a short, heavy ridge. Lateral fingers less than one third webbed; fourth finger slightly longer than the second, just reaching the base of the disk of the third; subarticular tubercles well developed; an angular pollex rudiment, more noticeable in the males. Toes almost completely webbed, the edge of the web inserted at the base of the disk on the third and the fifth; an inner metatarsal tubercle. Skin smooth above, granular beneath, on the throat minutely so. No dermal appendage on the hell. Habit robust, head broader than long, body rather heavy, slightly narrowed in the postaxillary region. Legs long, the tibiotarsal articulation reaching beyond the tip of the snout when adpressed. Type (female): 61 mm. (Fig. 1.) DIAGNOSIS of TADPOLE (by G. Orton). "A large specialized, mountain-stream tadpole, with wide head an elongated, flattened snout, greatly enlarged lips and high tooth formula. Eyes dorsal. Spiracle sinistral, projecting, situated far back on side. Anus dextral. Tooth formula 8/12 to 9/14 in fully grown larvae. Tail with a prominent, vertical dark band across musculature and fins; a second concentration of dark pigment near tip of tail, may or may not form a similar but narrower band. Maximum known total length: 60mm.; head and body length 25mm. (Figs. 6 e 7). For further details see Lutz & Lutz, 1939 and Lutz B. & Orton G. 1946.

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This scoping review has been commissioned by the Policy Research Programme and briefly outlines the scope and quality of relevant literature relating to: 1) The investigation of inequalities in access to cardiac services in the U.K. since 1995; and 2) The effectiveness of interventions in the U.K. since 1995 to reduce inequalities in access to cardiac services

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Presentamos en esta primera nota un análisis de la especie Hygrocybe conicoides (Orton) Orton y Watling, primera cita para el catalogo micológico de Cataluña. Se tratan los aspectos macroscópicos y microscópicos, así como los caracteres diferenciales de la especie y su identidad taxonómica. Hygrocybe conicoides aparece como un hongo psamófilo, posiblemente citado en otras ocasiones como forma arenícola de H. nigrescens e H. cónica (LOSA QUINTANA, 1968; HEIM, 1934).

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Donem a conèixer els resultats de les prospeccions micològiques realitzades a Menorca entre els anys 1980 i 1988, i els presentem en forma de catàleg. S'han estudiat 193 tàxons (10 Ascomycetes i 183 Basidiomycetes), dels quals 127 creiem corresponen a citacions noves per a l'illa, entre els quals destaquem: Agaricus pequinii (Boud.) Konr. & Maubl., Amanita boudieri Barla, Dermoloma pseudocuneifolium Henrink, Hebeloma sarcophyllum (Peck) Sacc., Inocybe tenebrosa Quél., Psathyrella ammophila (Dur. & Lev.) Orton, Lactarius cistophilus Bon & Trimb. Russula seperina Dupain i Battarraea phalloides (Dicks.) Pers

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Es donen a conèixer els primers resultats dels estudis sobre la flora dels Basidiomicets que fructifiquen a les torberes d'esfagnes dels vessants catalans dels Pirineus. Es citen i comenten 9 espècies noves o poc conegudes a la Península Ibèrica, com són: Hygrocybe coccineo crenata (Ort.) Mos., H. lepida Arnolds, Hypholoma elongatum (Pers.: Fr.) Ricken, H. udum (Pers.: Fr.) Kühner, Omphalina oniscus (Fr.: Fr.) Quél., Hebeloma helodes Favre, Cortinarius palustres Moser, C. sphagneti P.D. Orton i C. uliginosus Berk.