jeff

Bonjour

very good  sucess ROBERT

jeff

Bonjour JAY

merci for these infos.

you have try just stem cutting , the leaves cutting do not start ?

the rooted stem cutting give tuber ?

jeff

Bonjour

very interesting method JAY  , and really the plant is sprouting new growths on the upper edge of the wound ?

you use this method on a  healthy plant or a damaged plant.

I tried that too on a plant that began to rot, I had removed all the damaged part with a cutter blade until reaching the healthy part ,Then I sprouted with charcoal powder,Unfortunately the result had not been convincing.

may be  ventilation was not sufficient ?

have you try leaf or stem cuttings ?

jeff

salut ANDREAS

you   try not  directly on peat ?

jeff

Bonjour

have you try , spore seedling on lecanopteris or solanopteris

jeff

Bonjour ROBERT

yes I have a light problem , but I can not explain the head rot,And when I cut, the stem divides and stays healthy.

jeff

WAOUH .

very nice collection .

jeff

Bonjour

For my part I had a lot of loss on juveniles, last year, head rot.
The only way I have found to remedy it, for those who remain is to cut off the head.

may be have you an others solutions ?

jeff

Bonjour

FRANK    what medium use you ? sphagnum ?dead or alive ? no peat?

have you a lot of mortality in your juveniles ?

jeff

Bonjour

it is not a question but a answer

for me a registered herbarium sheet is greater than a non-exhaustive list, but that's just my opinion.

for IPNI  see here :  IMPORTANT: IPNI does not have information on what are currently accepted names and what are taxonomic (i.e. heterotypic) synonyms. Find this information in floras, monographs, checklists, revisions etc.

amicalement

jeff

Bonjour

but we have some  herbarium bogoriense sheet  with some  registration number ( LEIDEN), it is not sufficient   , find in borneo in 1925 and 1956

Furthermore these H.extendifolium  specimen is very well preserved , and very close to this  H."perangustum" and H.puffii

JEFF

Bonjour

While this is indeed a good thing.

but we must also take into account other similar Hydnophytum has this P. Perangustum in different herbaria that can be seen

compare 2 different plant has no interest for me.

I would have like it compares this P.puffii  with P. extendifolium   for example

Bonjour

may be also  H.extendifolium  from borneo

jeff

Bonjour

very good infos  but some problem nevertheless  this DERRICK info :

So it is to be an official name if it does FINALLY get published.  Currently we may use Hydnophytum perangustum Jebb & C. R. Huxley in press.  However, for some unknown reason this is taking an extremely long time to be published, but It is evident that copies of Jebb & Huxley's Hydnophytum revision have been shared with some academics.

then 2 names for the same species ?

may be also H.extendifolium  from borneo ?

I am OK with JAY  on the picture , but on the morphological characters  I see tuber subglobose to slightly compressed ovoid ,it could do so , no?

jeff

Bonjour

I am on the same opinion than AURÉLIEN , wait for the flower

jeff

Bonjour

many thanks  ROBERT

jeff

Bonjour ROBERT

it is a nice surprise

can you tell us :

the actual temperature and the % hygrometry

thank for the answer.

jean françois

Bonjour ROBERT

I have 2 flower section  to  D.pectinoides

the second seem to me good

can you help me

JEFF

I understand the problem 'in situ', I'm not so obtuse.

In the other genus that interested and for which I am often 'in situ', it is also difficult and each details can be important for the determination or to discover new species, sub species, varieties or forms.

you do not have confronts you in this for the Heliamphora?

  'ex situ' although this is difficult, it's sometimes more, look J, it happens well, although sometimes the macro are not very sharp and difficult to interpret, he made some great discoveries.

sacrificing one or two flowers in my opinion it is not a drama.

for  Aurelien species, between tuberosa 'armata' and tuberosa 'muelleri' may be this could bring him more.

jeff

Bonjour

to make  expeditions in these regions, it is necessary to have money and a good physical condition, unfortunately I do not have those two things.

the europe for some others genus, is already quite large

So I work mostly on past and current documents in our possession , like you it seem to me .

as a botanist I like to have correct and complete descriptions for determinations.

for these plants, these morphological details

-tuber

-stem

-leaves

-inflorescence

-flowers

-fruit

Pictures make  not everything, we also need other elements  like flowers section .

in  all publications, all these details are described , why not do it ?

jeff

Bonjour

may be if you have a inflorescence section , you can discriminate between M.tuberosa 'armata' and M.tuberosa'muelleri'

may be areas where they were found, gives good info

it 's a pity , no inflorescence section

jeff

Bonjour

in the KAREMA  province  you have others tuberosa species like tuberosa 'versteegii'  why not this one ?

this one is pendent ,with some branched spines , with also several stem .

jeff

Bonjour

excellent

in this country  a lot of tuberosa species exist , perhaps 4-5

difficult to discriminate just on the fruit colour

jeff

Bonjour

use you NPK ?

jeff