Hong Tao, Gian Lupo Osti

Study on the chinese wild woody peonies (II) New Taxa of Paeonia L. Sect. Moutan DC.

Bulletin of Botanical Research, Harbin, 1994 vol.14 No.3 pp.237-239

Hong :(Chinese Academy of Forestry, Beijing 100091).Osti (International Dendrology Society, Roma 00197).

Paeonia rockii (S. G. Haw & L. A. Lauener) T. Hong et J. J. Li

subsp. linyanshanii T. Hong et G. L. Osti, subsp. nov.

Subspecies insignis, a Paeonia rockii (S. G. Haw & L. A. Lauener T. Hong et J. J. Li subsp. rockii differt foliolis lanceolatis vel anguste ovatis, integris.

Frutex deciduus, circa 2m altus, cortice brunneolo, striato basi surculo praeditus; folia bipinnata, foliolis lanceolatis vel anguste ovatis, 2 -8.5cm longis. 1 - 3cm latis, apice acuminatis, basi cunealis vel rotundatis, integris, supra glabris, subtus secus nervo medio hirsutis prope bain comosis, foliolis lateralibus subsessilibus vel petiolulatis, petiolulis 1-5mm longis hirsutis vel comosis. Flores solilarii, terminales, 13-14cm diam.; sepala 7, triangulo-ovata vcl ovato-rotundata, 13-14cm diam.; sepala 7, triangulo-ovata vel ovato-rotundata, 1-5cm longa, 1.8-4.5cm lata, petala 10-11, longe-ovovata vel obovato -rotundata, 6.5 -9cm longa, 4-8.5cm lata, alba, basi purpureo –nigro -maculata; stamina numerosa, antheris flavis, filamentis albis; discus albus, carpella 5, stigmatibus albis. Folliculi 5; 3.5 -4cm longi, dense brunneo-griseo hirsuti. Semina nitida, nigra, glabra. Florescentia fine Aprilis ad initium Maji.

Gansu: Wenxian, Baimahegou, alt. 1570m, wild, 28 April, 1993, Zhang Qi-rong 19930428 (Hololypus, Chinese Academy of Forestry).

Hubei: Baokan, Dashui, alt. 1600m, wild, 28 September, 1993, Hong Tao et Dai Zhen-lun 19930928 (CAP). Guanshan Forestry Center, alt. 800m, cultivated, 28 April 1994, Hong Tao 19940428.

Paeonia spontanea (Rehder) T. Hong et W. Z. Zhao, stat. nov.

Syn.: P. suffruticosa Andr. var. spontanea Rehder in J. Am. Arb. 1:193. 1920; Stern,

stud. Gen. Paeonia 43. 1946; K. Y. Pan, Fl. Reip. Pop. Sin. 27:45.1979 P. suffruticosa Andr. subsp. spontanea (Rehder) S. G. Haw & L. A. Lauener in Edinb. J. Bot. 47(3): 278-279. 1990

P. jishanensis T. Hong et W. Z. Zhao in Bull. of Bot. Res. 12(3):225-226. 1992, Syn.nov.

ABSTRACT

The present paper proposes 1 new subspecies and 1 new status of Chinese wild tree peony.

Lin's Peony, the new subspecies differs from Paeonia rockii in its lanceolate or narrow ovate and unlobed leaflets.

Jishan Peony is a very good wild species, from which originating a series of cultivars. So, the author raised Haw's subspecies to species grade, Paeonia spontanea (Rehder) T. Hong et W. F. Zhao stat. nov.

Key words Paeonia; Sect. Moutan: P. rockii subsp. linyanshanii; P. spontanea