Les Cneoraceae (Rutales): Étude Taxonomique, Palynologique et Systématique

Abstract

(Rutales'> etude taxonornique, palynologique et systematique ['Tht. Cneomc i. ., a taxonomic, palynological and systematic study].-Gram 17: 125-139, 1978. Uppsala 30 November 1978. hlorphological, caryological, anatomical, embryological, phytochemical, serological and palynological characters suggest a separation of the two genera Cneoriirn and Neochnninelen (Cneoraceae) from each other. The family is best placed in the Rutales. The ultn'structure of the exine is similar in the two genera while the exine Ornamentation differs. The pollen morphology resembles that of the Rutaceae and the Simaroubaceae and gives further support to the idea of including the family in the order Rutales. Aprks avoir revu I'ensemble des caractkres rnorphologiqucs, anatomiques, caryologiques, embryologiques, phytochimiques, serdogiques et palynologiques les auteurs concluent ii la necessite de separer les deux genres Cneoriim et Neochnriiuelea et de rattacher la famille aux Rutales. Par I'itude detaillie des caractkres du pollen, ils montrent Cgalernent que I'ultrastructure de I'exine est identique dans les deux genres, bien que I'ornementation et le nornbre des apertures soient diffirents. Le type pollinique des Cneoraceae est comparable ii celui des Rutaceae, Simaroubaceae et vient etayer I'opinion friquemrnent admise que la farnille appartient 5 I'ordre des Rutales.

Pollen morphology and systematics of Burseraceae

“…Pollen morphology has been described for about 60% of Rutaceae genera, representative of all seven subfamilies (Engler 1931), although the coverage is more comprehensive for some subfamilies than for others; for example, within subfamily Rutoideae pollen studies appear to be completely lacking in tribe Boronieae, while in tribe Xanthoxyleae pollen studies have been carried out for only four genera. Pollen accounts for Rutaceae include: Arreguín-Sá nchez et al (1995), Barth 1980Barth , 1982Barth , 1983Barth , 1985Correa et al (1992), Erdtman (1952), Grant et al (2000), Harley (1986), Lobreau-Callen et al (1975), Morton & Kallunki (1993), Mziray (1992), Rasolodimby (1983), Victor & Van Wyk (1998, 1999a, b, 2001. The pollen of the small, predominantly pantropical, family Simaroubaceae has not been extensively studied.…”

Morfologia polínica da tribo Bursereae (Burseraceae) na América do Sul

“…Há dados polínicos para Beiselia mexicana Forman no estudo de Forman et al (1989); para espécies dos gêneros: Boswellia Colebrooke nos trabalhos de Riollet (1974), Mitra et al (1977), Bonnefille & Riollet (1 980) e Segaar & van der Ham (1993); Bursera em Palacios-Chávez (1984), Palacios-Chávez et al (1987), Moncada (1989), Palacios-Chávez et al (1991), Roubik & Moreno (1991) e Segaar & van der Ham (1993); Commiphora em Sowunmi (1973), Riollet (1974), Lobreau-Callen et al (1975), Mitra et al (1977), Bonnefille & Riollet (1980), Rzedowski & Palacios-Chávez (1985), Moncada (1989) e Segaar & van der Ham (1993); e Triomma Hooker fil. em Segaar & van der Ham (1993).…”

Floral ontogeny of Cneorum tricoccon L. (Rutaceae)

“…Cronquist 1981) or Rutales (e.g. Straka et al 1976, Lobreau-Callen et al 1978, Thorne 1992, Takhtajan 1997. Typical characters of these orders are a woody habit, estipulate leaves, and hypogynous flowers with one or two ovules per carpel and a nectary disc.…”

“…It is sometimes treated as a separate genus Neochamaelea (Engl.) Erdtm., mainly on the basis of palynological data, presence of a specific kind of hairs, multiflowered inflorescences, presence of tetramerous flowers instead of trimerous flowers, and a different phytochemistry (Erdtman 1952, Straka et al 1976, Lobreau-Callen et al 1978, Mabberley 1997. However, Neochamaelea is strongly similar to Cneorum in its seed structure (Boesewinkel 1984).…”

“…Typical characters of these orders are a woody habit, estipulate leaves, and hypogynous flowers with one or two ovules per carpel and a nectary disc. Possible relatives of Cneoraceae are the Meliaceae, Rutaceae, Simaroubaceae, and Zygophyllaceae (Lobreau-Callen et al 1978, Cronquist 1981, Boesewinkel 1984, Chase et al 1999.…”