distribution known host:plantnet.rbgsyd.nsw.gov.au

Listing 1 - 10 from 77 for distribution known

The Cycad Pages
... a botanical database developed from The World List of Cycads, with a page for every known cycad. What are cycads? An introduction Botanical information and links, including Search for a name ... - a critical aspect of cycad ecology History - cycad evolution and the fossil record Geography and distribution - where cycads grow; why they are there Cycad Genomics - evolution of cycad form and function ...
plantnet.rbgsyd.nsw.gov.au

The Cycad Pages
... features, an ancient origin and a very long history. Cycads are known to have lived in the Permian era, over 200 million years ago ... the globe, the cycads are now greatly reduced in both numbers and distribution. There are now about 250 species in 11 genera, compared to ... leaf, and circle the trunk within the storage tissue. These are known as with girdling leaf traces, and occur in some ferns but ...
plantnet.rbgsyd.nsw.gov.au

The Cycad Pages
... Cycad Identification The cycads are members of an ancient and very distinct natural group botanically known as the Cycadophyta or Cycadales. This group has been divided into three families and 11 ... links for all accepted species in that genus and keys to identify them. Evolution and distribution are discussed on other separate pages. You can also search the World List of Cycads ...
plantnet.rbgsyd.nsw.gov.au

Ceratozamia alvarezii
... . norstogii is a larger plant with an unbranched trunk and spirally twisted leaf rachises. Distribution and habitat: Known only from a small area in the Sierra Madre de Chiapas, in moist pine ...
plantnet.rbgsyd.nsw.gov.au

Ceratozamia microstrobila
... botanist John D. Rees in 1983. Distinguishing features: Broad thin leaflets and small cones. Distribution and habitat: Known only from a single mountain in the Sierra Madre Oriental in San Luis Potosi ...
plantnet.rbgsyd.nsw.gov.au

Ceratozamia norstogii
... by American botanist Dennis Stevenson, although known since as early as 1925. Distinguishing features: Narrow leaflets, longer leaves often but not always twisted, prickly rachis. Distribution and habitat: A narrow endemic in ...
plantnet.rbgsyd.nsw.gov.au

Chigua restrepoi
... long peduncles from 2 to 3 times the length of the cone proper. Distribution and habitat: Only known from the type locality in northern Colombia where the genus occurs in primary rainforest ...
plantnet.rbgsyd.nsw.gov.au

Cycas arnhemica
... leaflets. Subsp. natja from northern Arnhem Land is distinguished by its smaller cones and seeds. Distribution: known only from Groote Eylandt, mainly on old beach dunes in near-coastal sites. Conservation status ... Arnhem Land differs in the larger leaves with longer, wider and more widely spaced leaflets. Distribution: known from a small area along the north coast of Arnhem Land, apparently only on ...
plantnet.rbgsyd.nsw.gov.au

Cycas desolata
... leaves with relatively few leaflets, and the spine-free petioles. Distribution: known only from two populations near Charters Towers. Conservation status: Known only from small populations on grazing land. 1997 IUCN Red List ...
plantnet.rbgsyd.nsw.gov.au

Cycas media
... estuary is distinguished by much longer cataphylls. These variants are recognised below as subspecies. Distribution and habitat: Widespread and locally common in open or closed forest or occasionally ... long, 29--32 mm wide. Distinguished by the very long, hard and sharp cataphylls. Distribution: known from the coastal plain north of Silver Plains homestead, apparently extending as far north ...
plantnet.rbgsyd.nsw.gov.au