Pinus engelmannii

Pinus engelmannii in Wakehurst Place, 2011

Common name: Apache Pine

Origin: Northern Mexico, New Mexico, Arizona

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