Wednesday, September 21, 2011

Pinus engelmannii

Pinus engelmannii in Wakehurst Place, 2011


Common name: Apache Pine
Origin: Northern Mexico, New Mexico, Arizona


Saturday, September 3, 2011

Delonix floribunda


Origin: Madagascar
Germination: Seeds scarified and placed in warm water for one day. Seeds that changed volume overnight placed in mixture of perlite, vermiculite and potting soil. Seeds that didn't change scarified once more and soaked again. Germination is rapid. 



Delonix pumila


Origin: Madagascar
Germination: Seeds scarified and placed in warm water for one day. Seeds that changed volume overnight placed in mixture of perlite, vermiculite and potting soil. Seeds that didn't change scarified once more and soaked again. Germination is rapid. 

Zamia nesophila

2 months old seedling

2 months old seedling

2 months old seedling

leave veins from below

Origin: Panama
Germination: Seeds are easy to germinate. In ca 1-3 weeks most of the seeds germinated in a mixture of vermiculite, perlite and potting soil. Germination rate 100 percent. 

Pinus cembra

3 months old Swiss Pine seedlings
Origin:  Alps and Carpathian Mountains of central Europe
Germination: Seeds soaked for day in water then sown in a mixture of perlite, vermiculite and potting soil and placed outdoor in a temperature between 10-22 degrees and kept moist. Few seeds germinated readily but most took about 1-2 months to germinate.
Links: wikipedia


Wednesday, August 31, 2011

Blechnum cycadifolium

few sporophytes emerging from the gamephytes
origin: Juan Fernandez Island
Germination: spores sown on top of moist, well sterilized peat moss in a clear plastic enclosed box. Once the sporophytes appeared every now and then sprayed with water to support the formation of gametophytes.



Cyathea medullaris

sporophyte appearing on a gametophyte
Origin: New Zealand
Germination: spores sown on top of moist, well sterilized peat moss in a clear plastic enclosed box. Once the sporophytes appeared every now and then sprayed with water to support the formation of gametophytes.
Links: wikipedia

Sunday, June 19, 2011

Araucaria cunninghamii subsp. cunninghamii

Seedlings 2 weeks after sowing

Close-up of Araucaria cunninghamii in front of British Museum as part of the Kew Australian Plant Display
 Origin: Australia
Germination: Seeds placed on wet cotton pads germinated after ca. 1 week (temperature 18-25 C). 13 seeds from 20 germinated (mostly the bigger seeds). Smaller seeds appeared solid inside without any embryos. All seedlings were green with 4 cotyledons.
Links:


Saturday, May 7, 2011

Phoenix rupicola


Origin: India, Bhutan
Conservation Status:

Links:

Pseudophoenix ekmanii

seedling
Origin: Dominican Republic
Conservation status:
Links:

Monday, May 2, 2011

Neocallitropsis pancheri

first seedling appeared after ca 1 month from sowing

Neocallitropsis seeds

Origin: New Caledonia
Conservation status:
Germination: Seeds soaked in water for 1 day. Then placed in a mixture of vermiculite, perlite and potting soil. 2 from 20 seeds germinated after ca 1 month from sowing. 3rd seed germinated about a week later.
Links:

Sunday, May 1, 2011

Agathis australis

seedlings week old
seedlings

Origin: New Zealand
Conservation status:
Germination: Seeds soaked in water for two days, then sown in mixture of perlite, vermiculite and potting soil. First seeds germinated after 3 days. Other seeds germinated gradually over the following week. So far 50 germinations from ca 100 seeds (about 2 months old from collection).
Links:

Monday, April 11, 2011

Pinus roxburghii

Seedlings about 1 week old
Origin: Himalaya
Conservation status: 

Germination: Seeds soaked for 2 days in water, then placed in a heated propagator at ca 25 C. No stratification. applied. First seeds started sprouting after ca. 14 day from sowing. Others followed withing the next week. Germination percentage ca. 80 percent (22 seedlings from 28 seeds)
Links:
rarepalmseeds

Sunday, April 10, 2011

Pinus canariensis

half year old seedlings
Pinus canariensis - 1 week old seedlings


Origin: Canary Islands
Conservation Status: 
Germination: Soaked seeds for 2 days. Seed were sown in mixture of perlite, vermiculite and potting soil in a heated propagator at about 25 C. Seeds started sprouting after ca 14 days. No stratification applied. 14 from 16 seeds germinated.
Links:
rarepalmseeds

Dacrydium araucarioides ?

This seedling germinated from a seed after exactly one year.
The brownish rounded seed coat is on the left side of the seed and resembles very much the seeds i bought as dacrydium araucarioides.

Origin: New Caledonia
Conservation status:
Links:
arkive
rarepalmseeds

Embothrium coccineum

Embothrium coccineum seedlings ca 14 days old
Origin: Chile
Germination: Germination rate is usually very good - up to 80 percent. Many seedlings unfortunately usually damp off few days later after the germination.

Sunday, April 3, 2011

Agathis ovata

first needles appearing after ca 2 months from germination
2 weeks old - cotyledons appear.


1 week old
sprouting seeds


Origin: New Caledonia
Conservation status:
Germination: soaked seeds for one day in the water, placed them onto wet cotton pads changing the cotton pads daily. Seeds started sprouting after ca. 6 days. Then  they were placed in the mixture of vermiculite, perlite and potting soil in a heated propagator at about 25°C. Out of 10 seeds 9 germinated. One seed had double a embryo. Cotyledons appeared after ca. 2 weeks from germination and first needles after almost 2 months.
Links:
arkive
rarepalmseeds


Wednesday, March 30, 2011

Tuesday, March 29, 2011

Retrophyllum minor




Seedlings after 2 months from germination.
Seedlings 1 month old.





 1 week old
germinating seeds right from the envelope

Origin: New Caledonia
Conservation status:
 
Germination: 7 seeds were germinating in the envelope already. 5 remaining seeds were soaked in water for 3 days and planted in the soil. 2 of them germinated in a month time. 2 months from sowing all seeds germinated. Cotyledons and first leaves appeared at the same time after ca 1 month after germination when they finally managed to release themselves from the seed coats. 
Links:
arkive
rarepalmseeds