One can better see this at Bromeliad Society International official site
http://registry.bsi.org/?genus=DYCKIA&id=11010#11010
(Você poderá ver melhor esta documentação científica no Site da BSI cujo endereço está ali em cima.)
Dyckia ‘Leopoldo Witeck’
Geoff
Lawn
BSI
Cultivar Registrar
In August, 2009 a Brazilian plant-hunting group made another regular
excursion in uphills near Santa Maria, Rio Grande do Sul State to explore for
hippeastrums, cacti, bromeliads, orchids and palm trees. This botanical party
was led by forestry engineer and conservation consultant Professor Leopoldo
Witeck Neto (from nearby Federal University of Santa Maria), some of his biology students and accompanied
by biologist Lucas Coelho from Belo Horizonte, Minas Gerais State.
At one point the group came across a very rare find in the open
mountain terrain near a rocky outcrop. Everyone got excited to see a large
(about 60cms. diameter) single highly variegated Dyckia rosette with creamy
yellow and green stripes, next to a
clump of green-leaved Dyckias which were
common in the area and thought to be Dyckia
maritima. Lucas confirmed this variegate was not vegetatively attached to
other Dyckias close by, which indicates it was a chance mutation from seed.
As BSI Cultivar Registrar I was duly notified, together with details
and photos, that Lucas Coelho wanted to
name this Dyckia variegate after his friend and mentor Leopoldo Witeck. This
honour is in recognition of Professor Witeck’s field work and conservation
activities in the Santa Maria region, such as propagating endangered native
species as for example, the rare Brazilian palm tree Thritrinax braziliensis. In 2008 Leopoldo Witeck discovered the new
local species orchid Cyrtopodium witeckii
also named in his honour. See: http://sucuri.cpd.ufsm.br/noticias/files/arq/25531.pdf
Since this variegate’s exciting discovery 2 years ago, recent news is
that the variegated rosette has not flowered but has produced one variegated
pup. Blooming photos are needed for registration, although there are exceptions
with long-term cycle cultivars. The Bromeliad Cultivar Register is primarily an
aid to identify cultivars circulating in horticulture, but a single new
unflowered variegate or two in one collection does not meet that requirement
yet. (author’s note: now registered 12/2012)
The cultivar name D.
‘Leopoldo Witeck’ stands alone to identify this clone but does not link it to a
particular species. According to the Pitcairnioideae Monograph (Smith &
Downs 1977) D. maritima inhabits open
rocky or turfy ground, mostly near the sea, 30-50m alt. in Santa Catarina and
Rio Grande do Sul States. Specialist
Dyckia grower and consultant in Brazil Constantino Gastaldi states that the
true D. maritima has a restricted range in Rio Grande do Sul
State of Torres, Passo de Torres and surroundings, close to the Atlantic Ocean.
Constantino advises also that the variegate ’Leopoldo Witeck’ is more
likely D. aff. maritima as he is aware of at least 3 clones of
green-leaved D. aff. maritima at
Pedra do Segredo, Caçapava, which is near Santa Maria---about 300kms inland
from the Atlantic coast. Whether these clones of D. aff. maritima represent
new species only field botanists can decide. It seems the beautiful and
possibly more unknown Dyckia species in Brazilian habitats need further studies
to determine their botanical status.
No comments:
Post a Comment