Daniel A. Giuliano

Nuevas Secciones En Baccharis (Asteraceae, Astereae) de América Del Sur1

Abstract Fifteen new sections of genus Baccharis L. (Asteraceae, Astereae) from South America are described, four of them belonging to subgenus Baccharis: Baccharis sect. Caespitosae Giuliano, Baccharis sect. Frenguellianae Giuliano, Baccharis sect. Spicatae Giuliano, and Baccharis sect. Tucumanenses Giuliano; five belonging to subgenus Molina (Pers.) Heering: Baccharis sect. Albidae Giuliano, Baccharis sect. Divaricatae Giuliano, Baccharis sect. Effusae Giuliano, Baccharis sect. Lilloanae Giuliano, and Baccharis sect. Megapotamicae Giuliano; one belonging to subgenus Pteronioides Heering: Baccharis sect. Australes Giuliano; one belonging to subgenus Tarchonanthoides Heering: Baccharis sect. Coridifoliae Giuliano; and four sections not assigned to any subgenus: Baccharis sect. Arenariae Giuliano, Baccharis sect. Rodriguezianae Giuliano, Baccharis sect. Tenellae Giuliano, and Baccharis sect. Thymifoliae Giuliano. Three new combinations are proposed: Baccharis sect. Heterothalamus (Less.) Giuliano, Baccharis sect. Icma (Phil.) Giuliano, and Baccharis sect. Palenia (Phil.) Giuliano. A lectotype is designated for B. arenaria Baker.

Revision of the genus Pseudognaphalium (Asteraceae, Gnaphalieae) in Chile

El genero Pseudognaphalium, con cerca de 90 especies de distribucion cosmopolita, es uno de los generos de la tribu Gnaphalieae con mayor numero de especies, principalmente distribuidas en America del Sur, Central y del Norte, aunque algunas tambien estan presentes en Asia y Africa. Este trabajo comprende la revision de 12 especies de Pseudognaphalium para Chile, P. aldunateoides, P. cabrerae, P. cheiranthifolium, P. cymatoides, P. gayanum, P. lacteum, P. landbeckii, P. munoziae, P. psilophyllum, P. remyanum, P. tarapacanum y P. viravira. Se incluye una clave para identificarlas y para cada una de las especies se brinda descripcion, ilustracion, fenologia, distribucion geografica y habitat, mapa de distribucion, material adicional examinado y afinidades taxonomicas. Sobre la base del estudio de los materiales tipo, se establecen los siguientes nuevos sinonimos: Gnaphalium diminutivum, Pseudognaphalium perpusillum, con P. aldunateoides; G. canum, G. ulophyllum, P. moelleri con P. cymatoides; P. heterophyllum, P. heterotrichum, G. pseudohelichrysum, P. robustum, con P. gayanum; P. glandulosum con P. psilophyllum; G. longifolium, G. subnudum, P. andicola, P. coquimbense, P. illapelinum, P. montevidense, P. pratense, con P. viravira; se designan lectotipos para las siguientes especies: Gnaphalium acutifolium, G. araucanum, G. argyrolepis, G. canum, G. cymatoides, G. glandulosum, G. heterophyllum, G. illapelinum, G. lacteum, G. landbeckii, G. moelleri, G. ramosum, G. remyanum, G. subnudum, G. tarapacanum, G. ulophyllum, G. viravira y se designa el neotipo para G. psilophyllum.

Lectotipificaciones en Amaranthaceae de la Flora Argentina

Lectotypifications in Amaranthaceae for Flora Argentina. Lectotypes are designated for 36 species and 22 infraspecific taxa of Amaranthaceae for Flora Argentina which belong to the currently accepted genera Alternanthera, Blutaparon, Chamissoa, Froelichia, Hebanthe, and Pfaffia. Of all the lectotypifications, 20 are second step lectotypifications.

Senecio subser. Polyphylli, a New Name for Senecio subsect. Radiati (Asteraceae, Senecioneae) from Southern South America

Abstract. Senecio L. subsect. Radiati Cabrera, an illegitimate name, is replaced with the name Senecio subser. Polyphylli Giuliano, M. P. Hernández & S. E. Freire, nom. nov.; the epithet of the replacement name refers to the type species of this subsection, S. polyphyllus Kunze ex DC. The epithet Radiati was previously published by Bentham to designate a series of Senecio.

A new species of Baccharis (Asteraceae, Astereae) from Santa Catarina, Brazil

ABSTRACT A new species, Baccharis coronata Giuliano, from Santa Catarina, Brazil, is described and illustrated. This species, belonging to section Oblongifoliae, is distinguished by its axillary compound corymbs crowned by the upper leaves.