Results 21 to 30 of about 23,140 (218)

Lectotypification of Tsuga longibracteata W.C.Cheng (Pinaceae) [PDF]

open access: yesPhytoKeys, 2021
W.C.Cheng did not clearly indicate the herbarium repository of the type specimen (Y.Tsiang 7712) when he described Tsuga longibracteata W.C.Cheng. Later, researchers suggested that the type is either in NAS or in PE. However, we found more than one duplicate of the type collection in both NAS and PE. Following the Shenzhen Code, we lectotypify the name
Yong Yang, Keith Rushforth
openaire   +3 more sources

Phylogeny and taxonomy of the Ophiostoma piceae complex and the Dutch elm disease fungi [PDF]

open access: yes, 2001
The Ophiostoma piceae complex forms a monophyletic group of insect-dispersed pyrenomycetes with synnemata (Pesotum) and micronematous (Sporothrix) synanamorphs. Other species of Ophios-toma outside of the O.
Farrell, Roberta L.   +4 more
core   +2 more sources

Regeneración y estructura vertical de un bosque de Pseudotsuga menziesii (Mirb.) Franco en Chihuahua, México

open access: yesRevista Mexicana de Ciencias Forestales, 2020
Para la caracterización de la estructura vertical de un bosque de Pseudotsuga menziesii en el ejido Chinatú, municipio Guadalupe y Calvo, Chihuahua, se realizó un muestreo aleatorio de ocho sitios circulares de 1 000 m2 dispersos en 80.46 ha.
Samuel Alberto García García   +4 more
doaj   +1 more source

Adult Feeding Preference and Fecundity in the Large Pine Weevil, Hylobius abietis (Coleoptera: Curculionidae)

open access: yesInsects, 2021
Adult feeding preferences of Hylobius abietis on Picea abies, Larix decidua, Pinus sylvestris, Pseudotsuga menziesii, Abies alba and Betula pendula were tested in outdoor conditions. The preferred food source was P.
Petr Doležal   +2 more
doaj   +1 more source

Taxonomic differences between Pinus sylvestris and P. uncinata revealed in the stomata and cuticle characters for use in the study of fossil material [PDF]

open access: yes, 2009
Taxonomic differences in the needle epidermis characteristics of Pinus sylvestris L. and Pinus uncinata Ramond ex DC. from two Iberian populations were sought; such information could help identify these species when pollen analysis and the inspection of ...
Garcia-Amorena Gomez del Moral, Ignacio   +3 more
core   +2 more sources

Further Eastern Range Extension and Host Records for \u3ci\u3eLeptoglossus Occidentalis\u3c/i\u3e (Heteroptera: Coreidae): Well-Documented Dispersal of a Household Nuisance [PDF]

open access: yes, 2017
Leptoglossus occidentalis is reported for the first time from Connecticut, New York, Ontario, Pennsylvania, and Wyoming, representing an eastern range extension from Indiana and Michigan.
Gall, Wayne K
core   +2 more sources

Siberian dwarf pine (Pinus pumila (Pall.) Regel, Pinaceae) – history of study, the current state in the botanical gardens of Saint Petersburg and the perspectives of its use in greening in the North-West of Russia

open access: yesHortus Botanicus, 2019
The Siberian Dwarf Pine (Pinus pumila (Pall.) Regel) has been cultivated outdoors in botanical gardens of Saint Petersburg (Russia) since 1833. It is in fact nearly unknown outside of arboricultural centres.
Orlova Larisa Vladimirovna   +3 more
doaj   +1 more source

Climatic niche and neutral genetic diversity of the six Iberian pine species: a retrospective and prospective view [PDF]

open access: yes, 2010
Quaternary climatic fluctuations have left contrasting historical footprints on the neutral genetic diversity patterns of existing populations of different tree species.
Soto de Viana, Álvaro
core   +2 more sources

New form of Pinus sylvestris L. founded in the Udelny park (St. Petersburg, Russia)

open access: yesHortus Botanicus, 2020
Pinus sylvestris L. f. serpentina L. V. Orlova & V. V. Byalt var. nova (Pinaceae) – a new form of Scots pine with very specific long serpentine winding lateral shoots – was founded in the Udelnyi park (St.
Byalt Viacheslav V., Orlova Larisa V.
doaj   +1 more source

Ecological and biogeographical observations on Cerambycidae (Coleoptera) from California, USA [PDF]

open access: yes, 2008
New ecological and biogeographical observations are presented for the following 32 species of Cerambycidae from California: Atimia confusa dorsalis LeConte, Anelaphus albofasciatus (Linell), Aneflus prolixus prolixus LeConte, Anoplocurius incompletus ...
Swift, Ian
core   +2 more sources

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