Crassulaceae

Sedum danjoense (Crassulaceae), a new species of succulent plants from the Danjo Islands in Japan

“…On the other hand, among the plants of the Danjo Islands, this study is the first to identify a disjunctive distribution pattern between islands and continental China at the species level. In general, Crassulaceae species are mostly dispersed by gravity and wind (Thiede & Eggli 2007). Furthermore, Nakanishi (2002) reported that S. danjoense (as S. formosanum) dispersed by raindrops.…”

“…Furthermore, Nakanishi (2002) reported that S. danjoense (as S. formosanum) dispersed by raindrops. Therefore they are thought to lack long-distance dispersal ability because their seeds are much larger than typical anemochorous dust seeds (Thiede & Eggli 2007). Therefore, it is likely that the S. danjoense ancestor migrated to the Danjo Islands from continental China via a land bridge, and that the subsequent separation of the islands resulted in anagenesis for S. danjoense, such as the Danjo Islands snake mentioned above.…”

“…420 species (Thiede & Eggli 2007). Sedum includes annual, biennial, and perennial herbs with succulent leaves and stems that are primarily distributed in temperate to subtropical environments, and are most diverse in the Mediterranean Sea, Central America, Himalayas, and East Asia (Stephenson 1994;Thiede & Eggli 2007).…”

A new combination in Phedimus (Crassulaceae), with neotypification of Sedum latiovalifolium

“…According to recent molecular studies ('t Hart 1995, Ham 1995, Ham & 't Hart 1998, Gontcharova et al 2006, Thiede & Eggli 2007, Gontcharova & Gontchaov 2009), the genus Phedimus Rafinesque (1817: 438) was segregated from Sedum Linnaeus (1753: 430). This taxonomic treatment of Phedimus is also supported by morphological evidences (Ohba et al 2000, Ohba 2001, Fu et al 2001.…”

Dos especies nuevas de Crassulaceae del sur de Jalisco, México

“…Su delimitación ha estado sujeta a algunas controversias (Fröderström, 1935;Baehni, 1937;Walther, 1938;Clausen, 1940), originadas principalmente por la incierta relación con un grupo de especies de corolas también tubulares, pero de inflorescencias cimosas que fueron reconocidas originalmente en Altamiranoa (Britton y Rose, 1903) y que más recientemente fueron transferidas a Sedum (Moran, 1996). El concepto original de Villadia (Britton y Rose, 1903) es ampliamente seguido en la actualidad y existe vasto consenso respecto a su delimitación (Thiede, 2003;Thiede y Eggli, 2007;Pérez-Calix, 2008). Sin embargo, hipótesis filogenéticas generadas mediante el análisis de marcadores moleculares (Carrillo-Reyes et al, 2009) sugieren que Villadia es un conjunto parafilético y que el tipo de inflorescencia tirsoide ha aparecido en múltiples ocasiones dentro del "Grupo Villadia" y no es un carácter diagnósti-co para el reconocimiento del género.…”