Rashida ji
Thanks for pointing out. I should have checked it earlier. Now according to
my analysis the Correct name should be Euphorbia umbellata (Pax) Bruyns,
because the author himself had made this correction in 2007, the name
Euphorbia pseudograntii being already occupied by a totally different
species E. pseudograntii Pax.
The Name for our plant should accordingly be:
*Euphorbia umbellata* (Pax) Bruyns, Euphorbia World 3: 5 2007.
syn: *Euphorbia* *pseudograntii* Bruyns (non Pax) [Illegitimate]
*Synadenium* *grantii* Hook.f.
*Synadenium* *umbellatum* Pax
Accordingly in the key the name Euphorbia pseudograntii will be replaced by
Euphorbia umbellata
Stems unarmed; without stipular spines
All leaves of same colour
Leaves longer than 8 cm,
green.............................................................................................E.
umbellata
Leaves up to 8 cm long
Stem and leaves uniformly red, leaves in whorls of three,
petiole almost as long as blade.......E. cotoniifolia
Stem and leaves green, leaves alternate, petiole much shorter
than blade
Leaves shorter than 2 cm, less than 2 mm broad,
branches straight, mostly leafless
(leaves early
deciduous)......................................................................E.
tirucalli
Leaves longer than 3 cm, more than 2 cm broad,
branches zigzag, mostly with leaves.......E. tithymaloides
All leaves not of same colour; lower leaves green, upper partly or
uniformally coloured; leaves longer than 8 cm
Leaves below the inflorescence uniformally coloured (red,
white or yellow); leaves not lobed...E. pulcherrima
Leaves below the inflorescence coloured only at base; leaves
lobed or not
Base of upper leaves pale green or pale white; leaves
lobed or not...............................E. heterophylla
Base of upper leaves red; leaves
lobed......................................................................E.
cyathophora
Stems armed with spines
Spines borne on stem, usually longer than 1 cm; two showy bracts around
cyathium...................E. milii
Spines borne on raised shield, usually shorter than 1 cm, two showy
bracts lacking
Stem rounded, not angled or winged
Shrub wiithout trunk with branches arising from base, smaller
leaves (3-8 cm long)
and longer spines 0.5-1 cm.............E caducifolia
Tree with distinct trunk, leaves 10-25 cm long, spines
shorter than 0.5 cm........................E. nivulia).
Stem angled or winged
Angles not produced into wing, spirally
arranged:....................................................... E.
neriifolia
Angles produced into wings
Wings 3-4
The wings running straight, sinuate, regularly
dentate
Stems green without white
bands....................................................E. antiquorum
Stems white wholly or partially
The stems with white
bands on faces
Apex of stem
not cristate (without crowns at tips)...........E. lactea
Apex of stem
cristate (with crowns at tips)......................E lactea cv. Cristata
The stems uniformly
greyish white...................................... ...E. lactea cv. White
Ghost
The wings running spirally,
...................................................................................E.
tortilis
Wings 5-6,
undulate.....................................................................................................E.
royleana
--
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://people.du.ac.in/~singhg45/
On Sat, Mar 12, 2011 at 11:12 AM, Rashida Atthar
<[email protected]>wrote:
> Thankyou for posting one more Euphrorbia Sir. There is a minor variation
> in the nomenclature as compared to Kew Plant List: Euphorbia pseudograntii
> Pax is mentioned as the accepted name. Request your observations about the
> same. The type specimen does seem to match your plant.
>
> regards,
> Rashida.
>
> On Sat, Mar 12, 2011 at 9:12 AM, Gurcharan Singh <[email protected]>wrote:
>
>> Euphorbia pseudograntiitin Bruyns, Taxon 55:414. 2006
>> syn: *Synadenium grantii* Hook. f.
>>
>> A glabrous shrub cultivated in pots or beds in Delhi, evidently growing
>> several feet tall along roadsides in South India.
>>
>> Common Name: African milk bush
>>
>> With the addition of this species the key to woody species would be
>> revised as
>>
>> Stems unarmed; without stipular spines
>> All leaves of same colour
>> Leaves longer than 8 cm,
>> green.............................................................................................E.
>> pseudograntii
>> Leaves up to 8 cm long
>> Stem and leaves uniformly red, leaves in whorls of three,
>> petiole almost as long as blade.......E. cotoniifolia
>> Stem and leaves green, leaves alternate, petiole much
>> shorter than blade
>> Leaves shorter than 2 cm, less than 2 mm broad,
>> branches straight, mostly leafless
>> (leaves early
>> deciduous)......................................................................E.
>> tirucalli
>> Leaves longer than 3 cm, more than 2 cm broad,
>> branches zigzag, mostly with leaves.......E. tithymaloides
>> All leaves not of same colour; lower leaves green, upper partly or
>> uniformally coloured; leaves longer than 8 cm
>> Leaves below the inflorescence uniformally coloured (red,
>> white or yellow); leaves not lobed...E. pulcherrima
>> Leaves below the inflorescence coloured only at base;
>> leaves lobed or not
>> Base of upper leaves pale green or pale white; leaves
>> lobed or not...............................E. heterophylla
>> Base of upper leaves red; leaves
>> lobed......................................................................E.
>> cyathophora
>> Stems armed with spines
>> Spines borne on stem, usually longer than 1 cm; two showy bracts
>> around cyathium...................E. milii
>> Spines borne on raised shield, usually shorter than 1 cm, two showy
>> bracts lacking
>> Stem rounded, not angled or winged
>> Shrub wiithout trunk with branches arising from base,
>> smaller leaves (3-8 cm long)
>>
>> and longer spines 0.5-1 cm.............E caducifolia
>> Tree with distinct trunk, leaves 10-25 cm long, spines
>> shorter than 0.5 cm........................E. nivulia).
>> Stem angled or winged
>> Angles not produced into wing, spirally
>> arranged:....................................................... E.
>> neriifolia
>> Angles produced into wings
>> Wings 3-4
>> The wings running straight, sinuate, regularly
>> dentate
>> Stems green without white
>> bands....................................................E. antiquorum
>> Stems white wholly or
>> partially
>> The stems with
>> white bands on faces
>> Apex of stem
>> not cristate (without crowns at tips)...........E. lactea
>> Apex of stem
>> cristate (with crowns at tips)......................E lactea cv. Cristata
>>
>> The stems
>> uniformly greyish white...................................... ...E. lactea
>> cv. White Ghost
>> The wings running spirally,
>> ...................................................................................E.
>> tortilis
>> Wings 5-6,
>> undulate.....................................................................................................E.
>> royleana
>>
>>
>> --
>> 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://people.du.ac.in/~singhg45/
>>
>>
>
