STUDIES ON GENETIC RESOURCES OF ORNAMENTAL PLANTS IN WESTERN HUBEI PROVINCE (e.g. SHENNONGJIA REGION)

in HortScience

Shennongjia mountain region is famous for its various kinds of species. Through one year's deep-going expedition in the area, lots of valuable plant species were collected, among them many are very useful and had not been used in landscape. Such as Arisaema lobatum var. variegatum nv. LuDiFei, Cremastra appendiculata var. fulva LuDiFei, Stylophorum lasiocarpum (Oliv.) Fedde, Sedum filipes Hems., Iris wilsonii C. H. Wright, Amaranthus caudatus L., Cotoneaster dammeri Schneid, Meconopsis quintupineria Regel., Lysimachia paridiformis Franch., Dysoma versipellis (Hance) M. Cheng, Adiantum pedatum L. and so on. Some genera are quite rich in this region, especially in Rosa, Sorbus, Cotoneaster, Lonicera, Impatiens, Aconitum, Gentiana, Adiantum etc. All these are marvelous material for direct appliance in garden and for breeding. There are many rare plants in the area, large communities of Davidia involucrata Baillon and Chimonanthus praecox (L.) Link were found during the expedition, and what interesting more is that various natural variations do exist in the communities. Detail description and evaluation were given to the important species, and some suggestions of protection and utilization were offered in the paper.

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