Two New Taxa Orychophragmus Infraspecific of violaceus (Brassicaceae) China Northeast in Ling Wang, Xi-Juan Ma, and Chuan-Ping Yang* Northeast Forestry University, Harbin 150040, Heilongjiang, People’s Republic of China. [email protected] [email protected]; * Author correspondence: [email protected] for Abstract. Two new varieties of Orychophragmus grifolius (Pamp.) 0. E. Schulz, and variety lasiocarpus New violaceus 0. E. Schultz (Brassicaceae) are Migo. species considered be closely related (L.) to to described from Heilongjiang Province in northeastern 0. violaceus were also described from China and & include 0. taibaiensis Z. M. Tan B. X. Zhao (from & & Wang talus Ling Chuan P. Yang, differs from the Shanxi Province), 0. diffusus Z. M. Tan M. Xu, J. & Yang typical variety of the species in that the petal has five 0. limprichtianus (Pax) Al-Shehbaz G. (both & or more obtuse teeth (vs. smooth petals) in the upper from Zhejiang), and 0. ziguiensis Z. E. Zhao Q. J. expanded The clawed have Wu. third of the petal. petals mm an expanded apical section that is 10-13 long Recent fieldwork and herbarium research by the (vs. 7-13 mm), and the stems and pedicels are authors support the discovery of two additional A new puberulent second Orychophragmus (vs. glabrous). variety is 0. varieties of the species violaceus. & Wang Chuan violaceus var. variegatus Ling P. Both belong species because they share the to this Yang, which differs from the typical variety by the same height, flowering time, and number of flowers marked petal variegation of white and purple (vs. no per stem. The new variety 0. violaceus var. & petal variegation). The uppermost leaves are often odontopetalus Ling Wang Chuan P. Yang differs undivided, with sharply serrate margins irregu- from have (vs. the typical variety in that the petals five or larly toothed leaves). These distinctions have persist- more obtuse teeth ovate petals) on the upper third (vs. ed and been stable after eight years of cultivation in expanded The clawed have an of the blade. petals A mm field experiments in Heilongjiang. key to the expanded apical section that 10-13 long is (vs. infraspecific taxa of 0. violaceus is included. Both 7-13 mm), and the stems and pedicels are new Concern varieties are cataloged as of Least (LC), puberulent The second new glabrous). variety, (vs. IUCN Red & based on List categories and criteria. 0. violaceus var. variegatus Ling Wang Chuan P. Key words: Brassicaceae, China, Cruciferae, Yang, from differs the typical variety in that the IUCN Red Orychophragmus. Heilongjiang, and List, petals are strikingly white purple variegated (vs. no uppermost variegation). leaves are often Its The genus Orychophragmus Bunge (Brassicaceae) undivided, with sharply serrate margins irregu- (vs. was established in 1833 (Lu, 1980), based on the one larly toothed). The two new taxa are described, A species 0. sonchifolia Bunge. second species, 0. particularly regarding the variable characters of the was added 1916 and violaceus (L.) 0. E. Schulz, in it petals, which are taxonomically significant. These known was long accepted that only two species were remained petal features stable after eight years of in East and Central Asia, with the one species in cultivation in field plots at the Northeast Forestry China as 0. violaceus [= Brassica violacea L.]. This University campus Harbin in Heilongjiang Prov- at species widely distributed in Heilongjiang, is Jilin, Liaoning, Hebei, Shanxi, Henan, Shandong, Anhui, Orychophragmus Jiangsu, Zhejiang, Jiangxi, Shaanxi, Gansu, and 1. violaceus (L.) 0. E. Schulz, Bot. Sichuan provinces as wild and cultivated popula- Jahrb. Syst. 54(3, Beibl. 119): 56. 1916. tions. Lrom such broad geographic distribution and Basionym: Brassica violacea L., Sp. PI. 2: 667. TYPE: wide ranges of variation in leaf structure, shape, size, 1753. China. Henan: Neixang Xian, and indumentum, Baotianman Nature Reserve Yinghu Gou, 20 at least five additional varieties of & May Zhang Zhu 0. violaceus have been described, including variety 1994, D. Boufford, Liu, Ying, homaeophyllus (Hance) 0. E. Schulz, variety hupe- 26131 (neotype, designated by Al-Shehbaz in & A hensis (Pamp.) 0. E. Schulz variety interme- Cafferty Jarvis [Taxon 51: 532. 2002], not (1923), MO E dius (Pamp.) 0. E. Schulz (1923), variety subinte- seen; isoneotypes, not seen, not seen). 10.3417/2009133 Novon 22: 109-113. Published on 10 July 2012. doi: Volume Number Wang Ill 22, et al. 2012 Orychophragmus (Brassicaceae) Northeast in China — Wang & C. RYang 09009 (NEFU). B. Close-up of flowerShowing the obtuse teeth on petals; taken from specimen It NEFU Novon 112 — & & Figure 2. Orychophragmus violaceus var. variegatus Ling Wang Chuan P. Yang. A. Holotype specimen, L. Wang X. — J. Ma 8015 (NEFU). B. Close-up of flower, showing the purple and white variegation of the petals, taken from specimen at NEFU by the authors.