Reinstatement of Ticanto (Leguminosae - Caesalpinioideae) - the final piece in the Caesalpinia group puzzle Author Clark, Ruth P. https://orcid.org/0000-0001-9974-2933 Accelerated Taxonomy Department, Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AE, UK r.clark@kew.org Author Jiang, Kai-Wen https://orcid.org/0000-0002-5917-1846 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China & University of Chinese Academy of Sciences, Beijing 100049, China & Ningbo Botanical Garden, Ningbo 315201, China Author Gagnon, Edeline https://orcid.org/0000-0003-3212-9688 Royal Botanic Garden Edinburgh, 20 a Inverleith Row, Edinburgh EH 3 5 LR, UK & Technical University of Munich, Chair of Phytopathology, TUM School of Life Sciences, Emil-Ramman-St. 2, D- 85354, Freising, Germany text PhytoKeys 2022 2022-08-22 205 59 98 http://dx.doi.org/10.3897/phytokeys.205.82300 journal article http://dx.doi.org/10.3897/phytokeys.205.82300 1314-2003-205-59 80FCD4712A5A55208D85A8328CD55CDD

Table 3. Comparative characters of Ticanto species (characters considered to be most taxonomically informative are in bold).

	T. caesia	T. crista	T. elliptifolia	T. magnifoliolata	T. rhombifolia	T. sinensis	T. szechuenensis	T. vernalis	T. yunnanensis
Pairs pinnae	5-8(-9)	3-6(-8)	1-2	2-3(-4)	3-6	2-4(-5)	3-6	8-16	3
Position of pinnae	opposite	opposite (occasionally slightly subopposite)	opposite	opposite	opposite	opposite	opposite (rarely subopposite)	opposite to strongly subopposite	opposite
Pairs leaflets	8-15	2-4(-7)	2	2-3	3-5	2-5	3-6	5-10	2-3
Leaflet size	0.8-1.5 x 0.4-0.6	2.1-7.2 x 1-3.3	7-13 x 4.5-8	3.5-10.8(-15) x 2.1-7	1.5-2 x 0.8-1.3	1.8-10.7 x 0.8-5.1	1.2-6 x 0.8-3	1.2-2.8 x 0.5-1.5	6.0-11.5 x 2.5-4.5
Leaflet apex	truncate, obtuse, rounded, emarginate	obtuse or rounded to retuse, acute, or acuminate	rounded, obtuse or acute	usually obtuse, rounded, retuse or emarginate, occasionally acute	acute	usually acuminate or acute, occasionally rounded	usually acute, occasionally slightly rounded	acute	bluntly acuminate
Inflorescence indumentum	brown puberulent	glabrous or sparsely tomentose	densely hairy	sparsely to moderately tomentose	glabrous or subglabrous	sparsely to densely ferruginous tomentose	subglabrous to moderately tomentose	densely tomentose	unknown
Inflorescence length cm	10-15	8-40	unknown	15-30	10-20	7-42	11-15	12-35	>20
Pedicel length mm	4-7	5-15	8-12	5-11	6-9	3-12(-17 in fruit)	5-11	6-12(-16 in fruit)	ca. 7
Bracteoles mm	unknown	1 - 2.5 x 0.5 - 1	unknown	unknown	unknown	broad, 2-3 x 1-1.5	caducous, 1 x 0.25 mm, lanceolate-acuminate	1.2 x 1	unknown
Median petal size mm	3.5-5.5 (L)	6-9 x 3-7	ca. 10.5 x 6-7	ca. 7-10 x 3-5	ca. 7 (L)	6-8 x 3-4	6-9.5 x 2.5-5	6-9 x 2	unknown
Lateral petals size mm	3.5-5.5 (L)	6-11 x 3-6	10-12 x 4-5	ca. 7-10 x 3-5	ca. 7 (L)	6-10 x 2-6	5-10 x 3-4	9-11 x 3	unknown
Median petal indumentum (inner surface)	rhombic patch of hairs	dense circular patch of hairs in middle	circular patch of hairs	patch of hairs	patch of hairs	circular patch of orange hairs in middle, hairs on margins of claw	patch of hairs in middle; few hairs on margins of claw	dense circular patch of hairs in middle, some hairs on claw	unknown
Stamen length mm	ca. 6	4 - 12	9-14	5-10	7	5-12	ca. 9	9-12	unknown
Style length mm	ca. 4	ca. 4-11	7-10	ca. 5-10	10	6-12	10-12	6	unknown
Ovary indumentum	glabrous	glabrous or sparsely or patchily hairy	tomentose	glabrous	glabrous	sparsely to densely tomentose or glabrous	sparsely to moderately tomentose	densely pilose	unknown
Fruit dehiscence	indehiscent	indehiscent	indehiscent	indehiscent	indehiscent	indehiscent	indehiscent	dehiscent	dehiscent
Fruit size cm	4.5-5 x 2.3-5	2.7-7 x 2.2-3.7	4.5-5 x 2.2-2.5	2.8-4.2 x 2.2-3.5	3-4 x 2.3-2.5	3-5.8 x 1.9-4.1	1.5-3.4 x 1.5-3	4-6 x 2.5-4 x 1-1.3	5-7 x 2.8-3.5
Fruit wing	narrow	absent	absent	carinate, 5-6 mm	absent	0.5-4 mm wide	sometimes present, 1 - 3 mm wide, along part of fruit length	absent	absent
Fruit shape	elliptic	elliptic to lunate, sub-symmetrical to somewhat asymmetrical	oblong-elliptic, sub-symmetrical to sub-lunate	lunate	asymmetrical, sub-lunate	Sub-circular to lunate	strongly asymmetrical, sub-lunate to sub-circular or teardrop-shaped	obliquely oblong or sub-elliptic, slightly asymmetrical	oblong to elliptic, slightly asymmetrical
Fruit stipe mm	unknown	2-5	short	ca. 1	ca. 3	0-2	0-1	unknown	unknown
Fruit beak mm	unknown	1-10	1-5	2-7	slight beak	pronounced beak to 25	1-5	beak present	ca. 2
Fruit venation	prominent	prominent	prominent	prominent	prominent	prominent	prominent	not prominent	not prominent
Fruit indumentum	glabrous	glabrous or very sparsely tomentose	unknown	glabrous	glabrous	glabrous or glabrescent	glabrous	sparsely to densely tomentose	unknown
Fruit texture	ligneous	coriaceous	coriaceous	coriaceous	coriaceous	coriaceous	coriaceous	ligneous	ligneous
Ecology & elevation	forests along rivers, 200-1000 m	often coastal; limestone, up to 350 m	ca. 100 m	forests, 400-1800 m	thickets	forest, thicket, limestone, 100-1500 m	forest, thicket, limestone, 260-1500 m	Moist sandy soils, thickets, ca. 600 m	unknown