Ticanto magnifoliolata (Metcalf) R. Clark & Gagnon, 2022

Clark, Ruth P., Jiang, Kai-Wen & Gagnon, Edeline, 2022, Reinstatement of Ticanto (Leguminosae - Caesalpinioideae) - the final piece in the Caesalpinia group puzzle, PhytoKeys 205, pp. 59-98 : 59

4. Ticanto magnifoliolata (Metcalf) R. Clark & Gagnon comb. nov.

Basionym.

Caesalpinia magnifoliolata Metcalf. Lingnan Sci. J. 19: 553. 1940.

Type.

China. Kwangsi, Ling Yun Hsien, Steward, A.N. & Cheo, H.C. 583 (holotype: A [A00059894!]) .

Description.

Habit a scrambling shrub. Stems with scattered recurved prickles, ferruginous puberulent, glabrescent. Stipules not seen. Leaves with 2-3(-4) pairs opposite pinnae; petiole 3.5-9 cm; leaf rachis 3.3-18.5 cm, with paired recurved prickles at the pinna insertion points and scattered in between, or unarmed; pinnae 2-9 cm; leaflets 2(-3) opposite pairs per pinna, coriaceous, elliptic to obovate, base oblique, apex usually rounded or obtuse, retuse to emarginate, occasionally acute; terminal leaflets 3.5-10.8(-15) × 2.1-7 cm; lateral leaflets 3.5-9.3 × 2.1-4.6 cm; both leaf surfaces glabrous, or lower surface sparsely puberulent; venation reticulate, anastomosing. Inflorescence a raceme or panicle, axillary or terminal, 15-30 cm; axes and pedicels sparsely to moderately ferruginous tomentose; pedicels 5-11 mm, articulated, glabrous; bracts and bracteoles not seen. Flowers with a hypanthium ca. 1 × 2-4 mm, glabrous to sparsely orange tomentose; lower calyx lobe ca. 7 × 3 mm; other calyx lobes ca. 5-6 × 2 mm; all calyx lobes with ciliate margins; median petal inrolled, with a patch of hairs at base of blade on inner surface, ca. 7-10 × 3-5 mm; upper laterals ca. 7-10 × 3-5 mm, hairy on the claw inner surface; lower laterals ca. 7-10 × 3-5 mm, hairy on the claw inner surface. Stamen filaments ca. 5-9(-10) mm, the basal ½ tomentose; ovary ca. 3 mm long, glabrous, subsessile; style 5-10 mm, glabrous; stigma funnel-shaped, papillate, sometimes laterally placed. Fruit dark brown, indehiscent, coriaceous, lunate, stipe ca. 1 mm, beak 2-7 mm, venation prominent, glabrous, 2.8-4.2 × 2.2-3.1(-3.5) × 0.4-0.7 cm, wing on ventral suture carinate, 5-6 mm deep. Seed 1, brownish black, compressed, sub-circular, ca. 2 × 2.5 cm (Fig. 2B ).

Ecology.

Forests, scrubland; 400-1800 m.

Phenology.

Flowering February-July, fruiting May-November.

Distribution.

China (Guangdong, Guangxi, Guizhou, Yunnan) (Map 1 ).

Selected specimens examined.

China. Guangdong: Luoding, Caotang, Lianshi Village, B.H. Chen et al. 1793 (IBSC). Guangxi: Donglan, Sannong, Xiangtiandong Village, Haoyantun, H.Z. Lü, Z.Z. Lan & H.F. Cen 451224180425005LY (GXMG). Fusui, Zhongdong, Luhan?, near Mt. Damingshan, S.H. Chun 12435 (IBSC). Huanjiang, Mulun Nature Reserve, Xiazhai Observation Deck, W.B. Xu, R.C. Hu & M.Q. Han ML1296 (IBK). Leye, on the way from Gantian to Daping, M. Shi s.n. (NPH). Lingle, Xinhua, Sanhe, Lingle Exped. 34420 (IBK). Longzhou, Jinlong, Jinmei, Nongqiao, W.B. Xu, Y.S. Huang et al. LZ1370 (IBK). Napo, Bing Mung, Rong La Shan, H. Akiyama, H. Kudo, J. Murata, T. Sugawara, N. Tanaka, Y. Tateishi, Y.G. Wei & S.G. Wu 1233 (KUN). Pingguo, Taiping, Chami Village, Chajiangtun, H.Z. Lü, Y. Lin, L.L. Mo & B.Z. Ban 451023150325048LY (GXMG). Pingnan, Yaoshan, Luoxiang, Mt. Lingdingshan, C. Wang 39106 (IBK). Guizhou: Anlong, Huali, Dewo, Guizhou Exped. (C.S. Chang & Y.T. Chang) 3543 (HGAS). Anlong, Longshan, Dushan, Guizhou Exped. (C.S. Chang & Y.T. Chang) 3138 (HGAS, IBSC, KUN, NAS, PE). Ceheng, Shuanghe, Jishanlin, C.Z. Dang 1684 (HGAS). Pingba, Qibo, Taohua Village, Baidong, R. Yang & L.B. Yan PB1356 (GZAC). Xingren, Nongchang, near Shanhe, Guizhou Exped. (C.S. Chang & Y.T. Chang) 7790 (HGAS, IBSC, KUN, NAS, PE, WUK). Xingyi, Qingnan, Yangping, Bajiaoping?, Anshun Exped. 744 (HGAS). Yunnan: Funing, Zhesang, Nonguo Village, J. Cai, J.D. Ya, X.Q. Yu, Y. Su & C.H. Li 14CS9136 (KUN). Mali, Xialiangshuijing, Malipo Exped. 5326240386 (IMDY). Malipo, on the way from Huilong to Mabiao, X.X. Zhu, B. Xiao, G.S. Wang & J. Wang LiuED8612 (KUN). Si-chour-hsien, Ping-chai, K.M. Feng 12522 (KUN). Simao, Simaogang, H. Wang 3842 (HITBC).

Figures

Map 1. Distribution of all species (excluding T. crista).

Figure 2. Photos of Ticanto A T. crista (i) habit (ii) leaves (iii) flowers (E. D. Liu 8629, Yunnan, China (KUN )) (iv) leaves (K. W. Jiang KwT 033 (NPH )) (v) fruit and seeds (Z. Q. Song s. n. (fruit and seeds in NPH )) B T. magnifoliolata fruit and seeds (Q. Meng s. n., Guizhou, China (fruit and seeds in NPH )).