accepted name (2005):

Paeonia jishanensis Hong et Zhao

1990

original description:

P. suffruticosa Andr. subsp. spontanea (Rehder) S. G. Haw & L. A. Lauener, stat. nov.

Syntypes: China, Shaanxi, '50 li W. of Yenanfu' [Yanan], 1910, Purdom 338 (A— n.v., E, K); Tai-pei-shan [probably Tai Bai Shan], 1910, Purdom s.n. (sterile) (A— n.v.).

Syn.: P. suffruticosa Andr. var. spontanea Rehder, J. Am. Arb. 1: 193 (1920); Stern, Stud, Gen. Paeonia 43 (1946); K. Y. Pan, Fl. Reip. Pop. Sin. 27:45 (1979).

Leaves with 9 leaflets, ovate or broadly ovate to ± circular, usually rather bluntly lobed (Fig. Ic). Flowers single, rather small, purple, rose-pink or rarely white, un-blotched.

CHINA: ------Shanxi and northern and central Shaanxi. Two specimens, Purdom s.n. (sterile) and Xian Municipality Bureau of Hygiene Medicinal Products Inspection Institute Survey Team 0029, may have been collected from localities in the Qinling Mountains, but the locality information is not precise. If this subspecies does occur in parts of this mountain range, its area of distribution would just touch that of the following subspecies.

Hong & Osti (1992):

Paeonia spontanea (Rehder) T. Hong et W. Z. Zhao, stat. nov. Syn.:.... P. suffruticosa Andr. subsp. spontanea (Rehder) S. G. Haw & L. A. Lauener in Edinb. J. Bot. 47(3): 278-279. 1990

Wang (1998):

Paeonia spontanea (Rehder) T.Hong and W. Z. Zhao in Bull. of Bot. Res. 14(3): 238, 1994.

— P. suffruticosa Andr. var. spontanea Rehder

— P. suffruticosa Andr. ssp. spontanea (Rehder) S.G.Haw and L.A. Lauener

— P. jishanensis T. Hong and W.Z. Zhao.

Hong, D.-Y. & Pan, K.-Y. 1999.

A revision of the Paeonia suffruticosa complex (Paeoniaceae). -Nordic Journal of Botany 19: 289-299. Copenhagen. ISSN 0107-055X.

2. Paeonia jishanensis T. Hong et W. Z. Zhao

Bull. Bot. Res. 12(3): 225. Fig. 2. 1992. - Type: China, Shanxi, Jishan, Xiqiu, alt. 1200 m. 1991,05,10. Hong, T.915010(CAF,n.v.)

P. spontanea (Rehder) T. Hong et W. Z. Zhao Bull. Bot. Res. 14(3): 238, 1994.

P. suffructicosa ssp. spontanea (Rehder) S. G. Haw & L. A. Lauener in Edinb. J. Bot. 47(3): 278. 1990.

P. suffruticosa var. spontanea Rehder in J. Arn. Arb. l. 193. 1920, p.p., excl. specim. Tai-pei-shan (Mt. Taibai), Purdom s.n.(syntype of var. spontanea. A!); Stern, Stud. Gen. Paeonia, 43. 1946; K. Y. Pan, Fl. Reip. Pop. Sin. 27: 45. 1979. - Type (lectotype): China, Shaanxi, "50 li W. of Yenanfu" [Yan'an!], 1910, Purdom 338 (here designated A! isolectotypes E, K).

The group has been treated at three different levels, as variety by Rehder (1920), Stern (1946), Anonymous (1972) and Pan (1979), as subspecies by Haw & Lauener (1990) and as independent species by Hong, T. & Zhao (1994). The major differences between "suffruticosa" and "spontanea" are leaflet shape (particularly lateral ones), leaflet division and leaf indumentum in addition to whether there exist plantlets from root turions (spontanea) or not (suffruticosa).

The entity is scatteredly found in the Zhongtiao Mountains (Yongji County in Shanxi and Jiyuan County in Henan), the Luliang Mountains (Jishan County, Shanxi), the Huashan Mountains (Huayin County, Shaanxi), and Tongchuan and Yan'an both in Shaanxi (Fig. 7). All these populations except the one in Yan'an grow in thickets or in secondary deciduous forests at altitudes from 900 to 1700 m. The population in Yan'an consists of several individuals at the western side of the peony garden behind Zhaojun Temple in Wanhua Shan, and may well be introduced and naturalized there. Because the garden has been established probably for hundreds of years, and no one (including local people) knows its exact history, it is hard to give a definite answer about the history of P. jishanensis in Yan'an. All the populations mentioned above have purely white petals which are occasionally pinkish at the periphery (Plate 4).

Specimens examined. Henan: Jiyuan, 1050 m alt. 1997,04,26 Wang. S. Y. H97001 (PE, MO); Huadong-shu Forest Farm, 1200 m alt., 1994,05,22, Wang, S.Y. and Zhang, Y.J. 940220 (PE).

Shaanxi, Yan'an, Wanhua Shan, 36.6N, 109.4E, near the peony garden, 1997,05,09, Hong, D. Y. and Feng Y. X. H97066 (PE); eodem loc., Hsia, W. Y. 3519 (PE); Shaanxi-Gansu Basin, Le, T. Y. s. n. (PE).

Shanxi, no precise locality, 1390 m alt 1916,06.16, P. Licent 1909 (PE); Jishan: Xishe, 1550 m alt. 1989,05, Qiu, J. Z. PB89201 (PE); eodem loc. 1440 m alt. Qiu, J. Z. PB89501 (PE) ; Majiagou Village, 35.7N, 110.9 E. 1400 m alt. 1996,05,14, Zhou, S. L. H96053 (PE, A, K, MO, S); Majiagou Forest Farm, Chayuangou, 1450 m alt. 1982,05,14, Liu T. W. and Zeng Z. F. 165 (PE); eodem loc. Pei, Y. L. 9002 (PE); eodem loc., Pei, Y. L. and Hong, D. Y. 93003 (PE), 93006 (PE), 93008 (PE), 93009 (PE); Yongji, Shuiyukou Village, Pei, Y. L. 9170 (PE), 9180 (PE). 9201(PE); eodem loc., Pei, Y. L. and Hong, D. Y. 93011 (PE), 93427 (PE).

1999

HONG De-Yuan & PAN Kai-Yu Taxonomical history and revision of Paeonia sect. Moutan (Paeoniaceae) Acta Phytotaxonomica Sinica 37(4):351-368(1999) Paeonia jishanensis T. Hong et W. Z. Zhao

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