Lip 3-lobed, base sometimes connate with pistil to 3-6 mm; Lateral lobes are erect, usually surrounded by pistil columns, and middle lobes are generally curved outward; There are two longitudinal folds on the labial disc, which extend from the base to the base of the middle leaf, sometimes both ends swell or the middle part breaks;
The pistil is long, often bent forward, with wings on both sides, and the ventral surface is concave or sometimes short hair. There are two deeply divided pollen clusters or four pollen clusters to form two pairs of pollen with different sizes, which are wax-like and connected into a nearly triangular sticky disk with short and elastic pollen clusters.
Extended data:
Orchids are often divided into plants and propagated by tissue culture and sowing. Orchid seeds are very thin, and there is only one young embryo in the seeds, so the germination ability is very low. In addition, the seed coat is not easy to absorb water and can not germinate by conventional sowing methods. Therefore, it is necessary to supply nutrients with orchids or artificial culture media to germinate.
It is best to choose fruits that have not cracked yet for sowing. After the surface was disinfected with 75% alcohol, the seeds were taken out and soaked in 10% sodium hypochlorite for 5- 10 minutes. After taking out, they were washed with sterile water for three times, then seeded in a culture bottle with culture medium, and then placed in a dark culture room, and the temperature was kept at about 25℃.
After germination, protocorms can be moved to light to form. It takes six months to a year from sowing to transplanting.