Overview
|
Threatened |
 |
 | |
 |
Description
Family Crassulaceae
Herbs, subshrubs
, or shrubs
. Stems mostly fleshy
. Leaves alternate, opposite, or verticillate
, usually simple
; stipules absent; leaf blade
entire or slightly incised, rarely lobed
or imparipinnate
. Inflorescences terminal
or axillary
, cymose
, corymbiform
, spiculate
, racemose, paniculate
, or sometimes reduced to a solitary flower. Flowers usually bisexual
, sometimes unisexual
in Rhodiola (when plants
dioecious or rarely gynodioecious
), actinomorphic
, (3 or) 4-6(-30) -merous. Sepals almost free
or basally connate
, persistent
. Petals free or connate. Stamens as many as petals in 1 series or 2 × as many in 2 series. Nectar scales
at or near base
of carpels. Follicles sometimes fewer than sepals, free or basally connate, erect
or spreading
, membranous or leathery, 1- to many seeded. Seeds small; endosperm scanty or not developed.
About 35 genera and over 1500 species: Africa, America, Asia, Europe; 13 genera (two endemic, one introduced
) and 233 species (129 endemic, one introduced) in China.
Some species of Crassulaceae are cultivated as ornamentals
and/or used medicinally.[1]
Habitat
Ecology: Found at 1,000 m
altitude
, facing extreme sandblasting winds. The summit receives considerable condensation
from fog. The mountain is completely isolated (Williamson 1995). Probably occurs in quartzite as the mountain seems to be made of this, although this species was not spotted on a recent field
trip
.[2]
List of Habitats
:6Rocky areas (eg. inland cliffs
, mountain peaks)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Radiatopses
()
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
()
- Brongniart, 1843
- Dicotyledons
- Subclass:
Rosidae
()
- Takhtajan, 1967
- Superorder:
Saxifraganae
()
- Reveal, 1994
- Order:
Saxifragales
()
- Dumortier, 1829
- Family:
Crassulaceae
()
- A.p. De Candolle, 1805
- Stonecrop Family
- Genus:
Tylecodon
()
- Specific epithet:
aridimontanus
- G.Will.
- Botanical name: - Tylecodon aridimontanus G.Will.
- Specific epithet:
aridimontanus
- G.Will.
- Genus:
Tylecodon
(
- Family:
Crassulaceae
(
- Order:
Saxifragales
(
- Superorder:
Saxifraganae
(
- Subclass:
Rosidae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Similar Species
Members of the genus Tylecodon
ZipcodeZoo has pages for 56 species, subspecies, varieties, forms, and cultivars in this genus:
T. albiflorus · T. aridimontanus · T. atropurpureus · T. aurusbergensis · T. bayeri · T. bleckiae · T. bodleyae · T. buchholziana · T. buchholzianus · T. buchholzianus var. fasciculatus · T. bucholzianus · T. cacalioides · T. cordiformis · T. decipiens · T. ellaphieae · T. faucium · T. fragilis · T. grandiflorus · T. hallii · T. hirtifolium · T. jarmilae · T. kritzingeri · T. leucothrix · T. longipes · T. luteosquamata · T. mallei · T. nigricaulis · T. nolteei · T. occultans · T. paniculatus (Butter Tree) · T. papillaris · T. pearsonii · T. peculiaris · T. pusillus · T. pygmaeus · T. racemosus · T. reticulatus · T. rubrovenosus · T. scandens · T. schaeferanus · T. schaeferianus · T. similis · T. singularis · T. sinus-alexandri · T. stenocaulis · T. striatus · T. suffultus · T. sulphureus · T. tenuis · T. torulosus · T. tribblei · T. tuberosus · T. ventricosus · T. viridiflorus · T. wallichii (Wallich Cotyledon) · T. wickensii
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Williamson, G. 1995. Two new Tylecodon species (Crassulaceae) from the southern Namib desert (Namibia) and the Richtersveld (Cape Province, Republic of South Africa). Cactus and Succulent Journal (U.S.) 67: 114.
- Fu Shu-hsia & Fu Kun-tsun. 1984. Crassulaceae. In: Fu Shu-hsia & Fu Kun-tsun, eds., Fl. Reipubl. Popularis Sin. 34(1): 31-220.
Notes
Contributors
- Craven, P. & Loots, S. 2004. In IUCN 2008. 2008 IUCN Red List of Threatened Species. IUCNRedList.org. Downloaded July 19, 2008.
- Craven, P. & Loots, S. 2004. Tylecodon aridimontanus. In: IUCN 2006. 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 21 October 2006.
Identifiers
- Biodiversity Heritage Library NamebankID: 5990397
- Globally Unique Identifier: urn:lsid:ipni.org:names:982402-1
- IUCN ID: 46839
- Zipcode Zoo Species Identifier: 1029687
Footnotes
- Kunjun Fu, Hideaki Ohba & Michael G. Gilbert "Crassulaceae". in Flora of China Vol. 8 Page 202. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Craven, P. & Loots, S. 2004. In IUCN 2008. 2008 IUCN Red List of Threatened Species. IUCNRedList.org. Downloaded July 19, 2008. [back]
