Morphological characteristics of Orchid

There are more than 35000 species of Orchidaceae and more than 70 species of Orchidaceae. The common cultivated species in China are: four seasons famous flower spring orchid (C.goeringii): also known as grass orchid, mountain orchid, blossoming incense. 1 ~ 2 flowers per stem, fragrant. The florescence is from February to March. It is mainly distributed in the Yangtze River Basin and southwest China. The traditional and valuable varieties are Song Mei, Dragon character and so on. Variety C.georingiivar.serratum, with thin leaves and dark green flowers, no fragrance or light fragrance. National treasure Cymbidium (C.faberi): also known as Jiuzi Orchid, Xialan. There are many flowers on one stem, often 6 ~ 12, fragrant. The florescence is from March to May. The distribution area is similar to that of Chunlan. Traditional names include Shanghai Mei, Xie Peimei, Jin Jisu and so on. Ecological characteristics of perennial herbs. The root is fleshy, hairless and symbiotic. With false bulb, commonly known as Reed head, wrapped with leaf sheath, often multiple pseudobulbs connected together, existing in rows at the same time. Leaves linear or sword-shaped, leathery, erect or pendulous, flowers solitary or in racemes, pedicels bearing numerous bracts. Flowers bisexual, fragrant. Corolla consists of 3 sepals, 3 petals and core column. The middle one of the sepals is called the main lobe. The next two are the sidelobe, and the extension of the sidelobe is called household. The upper 2 petals are upright, fleshy, and the apex is curled inward, commonly known as holding. The following one is the lip flap, which is larger, commonly known as Lansun. It is brown after maturity, and the seeds are fine and powdery. Cymbidium and Cymbidium can be divided into plum valve, daffodil valve, lotus valve, butterfly valve, odd species and vegetarian heart according to the shape and texture of their main lobe, side lobe, holding lip and lip. The plum petal is short, round, fleshy, slightly curved inward, the base is narrow, the fleshy end of the petal is curved into a pocket, the lip is short and hard, and the flower is slightly upward at the beginning of flowering, famous varieties such as Song Mei and Xi Shenmei. Narcissus petal is slightly longer than plum petal, apex acuminate, holding petal texture thick, apex also into a pocket, lip slightly drooping or anti-curl, famous species are Wang character, Cui Yipin and so on. Tea petal for sepals broad, thick, narrow base, apex wide and pointed, holding petals not into a pocket, lip more moist, micro-rewind, famous species are big rich, Cuigai flower and so on. Butterfly petals are the inside of the two downward sepals, thickened in texture, wavy crepe, and red patches, sometimes a sudden increase in the number of whole sepals or petals (such as green clouds, Corolla is often about 8), or a special change in flower shape. Vegetarian heart for perianth, flower stem, bracts of the same color, pure green, yellow-green, no mottled green, yellow-green, no mottled markings, valuable varieties are Zhang Hesu, Lao Wen Tuansu and so on. Orchid like shade, avoid direct sunlight, like moist, avoid dry, like fertile, rich in humus, good drainage, slightly acidic sandy loam, suitable for ventilated environment.