Thanks Dr. Jacob This resolved my long pending ID also
-- Dr. Gurcharan Singh Retired Associate Professor SGTB Khalsa College, University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. Phone: 011-25518297 Mob: 9810359089 http://www.gurcharanfamily.com/ http://people.du.ac.in/~singhg45/ On Wed, Apr 25, 2012 at 6:52 AM, ushadi Micromini <[email protected] > wrote: > Dear Jacob: Thank you for the ID.... > > and the write up you have included is verbatim from WIKI, this particular > essay is at: http://en.wikipedia.org/wiki/Haworthia > > It would have sufficed to have given this link... or if one must include > the entire essay VERBATIM... it behooves the writer to give the URL link... > > Even if WIKI is an open source resource, a citation must be given, > otherwise it implies YOU wrote the whole essay , and since it not the > case.... there are conclusions to be drawn, you add them up ... I leave it > to you to do so... > > I hope you will take an active part in this group, and always give > reference/citations....like one does when writing any scientific paper... > > thanks > Usha di > ================= > > > On Tue, Apr 24, 2012 at 9:49 PM, Dr Jacob Thomas <[email protected] > > wrote: > >> It is* Haworthia limifolia* of* Liliaceae*. The common name is Zebra >> haworthia. >> Another classification is follows >> Kingdom: Plantae >> clade: Angiosperms >> clade: Monocots >> Order: Asparagales >> Family: Xanthorrhoeaceae >> Subfamily: Asphodeloideae >> Genus: Haworthia >> Species: H. limifolia >> >> Haworthia is a genus of flowering plants within the family >> Xanthorrhoeaceae, subfamily Asphodeloideae. They are small (typically 20 cm >> (8 in) high) solitary or clump-forming and endemic to South Africa. Some >> species have firm, tough leaves, usually dark green in color, whereas other >> are soft and semi-translucent. Their flowers are small, white and very >> similar between species. But their leaves show wide variations even within >> one species. >> >> The classification of the flowering plant subfamily Asphodeloideae is >> weak and concepts of the genera are not well substantiated. Haworthia is >> similarly a weakly contrived genus consisting of three distinct groups: >> sub-genera Haworthia, Hexangularis, and Robustipedunculares. Related genera >> are Aloe, Gasteria and Astroloba and intergeneric hybrids are known. >> >> The genus Haworthia is named after the botanist Adrian Hardy Haworth. >> Bayer recognizes approximately 61 species whereas other taxonomists are >> very much less conservative (1999, Haworthia Revisited, Umdaus Press). The >> species are endemic to South Africa, Swaziland, Namibia and Maputoland. The >> plants are small, forming rosettes of leaves from 3 cm (1.2 in) to >> exceptionally 30 cm (12 in) in diameter. These rosettes are usually >> stemless but in some species stems reach up to 50 cm (20 in). >> >> Their flowers are small, white and very similar between species. There >> are differences in the flowers of the three sub-genera that botanists have >> curiously considered inconsequential although the differences between >> species in the same subgenus definitely are. The roots, leaves and rosettes >> do demonstrate some generic differences while wide variations occur even >> within one species. Because of their horticultural interest, the taxonomy >> has been dominated by amateur collectors and the literature is rife with >> misunderstanding of what the taxa actually are or should be. >> >> There is widespread special collector interest but some species such as >> Haworthia attenuata and Haworthia cymbiformis, are fairly common house and >> garden plants. Haworthia species reproduce both through seed and through >> budding, or offsets. Certain species or clones may be more successful or >> rapid in offset production, and these pups are easily removed to yield new >> plants once a substantial root system has developed on the offshoot. Less >> reliably, the plants may also be propagated through leaf cuttings, and in >> some instances, through tissue culture. >> >> On Tue, Apr 24, 2012 at 8:20 PM, Nidhan Singh >> <[email protected]>wrote: >> >>> Dear All, >>> >>> This potted succulent was shot from Panipat, in March 2012. I have no >>> ideas of Id, hope to find through the group.. >>> >>> -- >>> Regards, >>> >>> Dr. Nidhan Singh >>> Department of Botany >>> I.B. (PG) College >>> Panipat-132103 Haryana >>> Ph.: 09416371227 >>> >>> >> > > > -- > Usha di > =========== > >
