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Open Access The genus Geranium L. (Geraniaceae) in North America. II. Perennial species

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Perennial species of Geranium from North America north of México are revised. Nineteen species are accepted, of which seventeen belong in subg. Geranium and two belong in subg. Robertium. Geranium erianthum, G. maculatum, G. oreganum, G. sylvaticum, G. caespitosum, G. californicum, G. lentum, G. wislizenii, G. richardsonii, G. viscosissimum are native, whereas G. pratense, G. sanguineum, G. potentilloides, G. sibiricum, G. thunbergii, G. retrorsum, G. solanderi, G. pyrenaicum and G. palmatum were introduced from Europe, Asia, and Oceania. Geranium eremophilum, G. fremontü, G. parryi, G. marginóle and G. cowenii, sometimes accepted in currant literature, are considerad to be synonyms of G. caespitosum. Similarly, G. strigosum and G. attenuilobum are synonymized to G. viscosissimum, and G. concinnum to G. californicum. Nomenclatura for all species is reviewed, and seventeen lectotypes are designated. Descriptions, key, distribution maps, and illustrations are included.

Se revisan las especies perennes de Geranium de Norteamérica al N de México. Se aceptan 19 especies de las cuales 17 pertenecen al subg. Geranium y dos al subg. Robertium. Geranium erianthum, G. maculatum, G. oreganum, G. sylvaticum, G. caespitosum, G. californicum, G. lentum, G. wislizenii, G. richardsonii, G. viscosissimum son las especies autóctonas, y G. pratense, G. sanguineum, G. potentilloides, G. sibiricum, G. thunbergii, G. retrorsum, G. solanderi, G. pyrenaicum y G. palmatum, las introducidas tanto desde Europa como desde Asia u Oceanía. Geranium eremophilum, G.j"remonta, G. parryi, G. margínale y G. cowenii, a veces aceptados en la literatura reciente, son considerados como sinónimos de G. caespitosum. Del mismo modo, se sinonimiza G. strigosum y G. attenuilobum a G. viscosissimum y G. concinnum a G. californicum. Se revisa la nomenclatura de todas las especies y se designan diecisiete lectótipos. Se incluyen descripciones completas, una clave, mapas de distribución e ilustraciones.
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Document Type: Research Article

Publication date: 01 January 2001

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