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| Michotamia aurata | Heliconia angusta | Balistapus undulatus | Chroicocephalus ridibundus |
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| Aepyceros melampus | Phyllidia varicosa | Pelomyxa palustris | Pseudotrapelus sinaitus |
Archwiliwch Wicirywogaeth
Cydweithio gyda ZooKeys   Cyhoeddwyd y byddwn yn cydweithio gyda ZooKeys. Mae PhytoKeys hefyd wedi ymuno gyda'r prosiect ers Tachwedd 2010. Mae lluniau a delweddau ZooKeys a PhytoKeys yn cael eu huwchlwytho i Gomin Wicimedia a'u defnyddio ar Wicirywogaeth. Awduron o nodAdriana Hoffmann Jacoby As a Chilean botanist and environmentalist, Adriana Hoffmann Jacoby has authored over a dozen books on the flora of Chile and has identified and classified more than 100 new species of cacti. She was Chile's Environment Minister in 2000 and 2001. She has advocated for the sustainable management and protection of Chilean forests, leading opposition to illegal logging in her role as coordinator of Defensores del Bosque Chileno (Defenders of the Chilean Forest) since 1992. Hoffmann was recognized by the United Nations in 1997 as one of the 25 leading environmentalists of the decade for her efforts to protect Chile's forests. In 1999 she won the National Environmental Prize in the category of Environmental Education, awarded by Comisión Nacional del Medio Ambiente (CONAMA). For her research into Chilean flora and her work in environmental education, Hoffmann received the Luis Oyarzún Award from the Austral University of Chile in 2003. She received a Fellow Award from the Cactus and Succulent Society of America in 2009. Hoffmann has also served on the judging panel for the United Nations Environment Programme's Sasakawa Prize.See also: Distinguished authors of previous months. |
Species of the monthDrakensberg cycad
Some facts about this gymnosperm: Visual characteristics: Grows up to 3 meters tall. Fronds are olive to yellow-green, and about 1 meter long, while leaflets are narrow (80–140 x 2–4 mm), with strongly revolute margins. The seeds have a yellow, fleshy covering. Pollination: Initially believed to be wind-pollinated, recent studies show that cones are pollinated mainly by the weevil family, and beetles from the Boganiidae, such as Metacucujus encephalarti. The Boganiidae are known only from South Africa and Australia, and this distribution, shared with the cycad family, indicates an ancient association between these insects and these plants. The beetles are strongly attracted by allomones produced in the early mornings and evenings by both male and female cones. Toxicity: The seeds are poisonous, containing the azoxyglycosides macrozamin and cycasin, and these are also present in the flesh, roots, stems and leaves, though in smaller concentrations. These toxins are characteristic of and exclusive to the cycads, and play an important role in deterring herbivores. Habitat: Shrub- and grassland in sub-Saharan Afromontane ecoregions. Distribution: This species is endemic to KwaZulu-Natal and the Eastern Cape provinces of South Africa, recorded at 10–12 locations from 700 to 2,400 meters above sea level. It is strongly associated with Natal Drakensberg on the eastern portion of the Great Escarpment, which encloses the central Southern African plateau. The largest stands are found in the Mlambonja Valley, South Africa. Number or mature plants: 8,000–10,000 (declining). Conservation status: Vulnerable (2009). This species is listed on Appendix I of the CITES Appendices. Populations are protected in the uKhahlamba Drakensberg Park and in the Mpendle Nature Reserve. First described: By Charles Antoine Lemaire, 1868 in L’illustration horticole 15: 79, t. 567. Etymology: Eponym of Édouard de Ghellinck de Walle, the 19th Century Belgian Ghent plant collector, horticulturist and amateur botanist who first cultivated it in Europe. See also: Species of previous months |
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