| 1 |
Nutlets semiglobose-tetrahedral.
|
(2)
|
| 1 + |
Nutlets trigonous-tetrahedral, inverted to oblique, subulate.
|
(14)
|
| 2 (1) |
Nutlet tuberculate, adaxially crustaceously obtuse ribbed.
|
(3)
|
| 2 (1) + |
Nutlet smooth, glabrous, shiny, neither tuberculate nor ribbed.
|
(7)
|
| 3 (2) |
Corolla white; bracts present on lowermost 1 or 2 flowers of inflorescences
(12)
|
Trigonotis nandanensis
|
| 3 (2) + |
Corolla blue to purple; bracts absent.
|
(4)
|
| 4 (3) |
Inflorescences sessile
(11)
|
Trigonotis macrophylla
|
| 4 (3) + |
Inflorescences conspicuously pedunculate.
|
(5)
|
| 5 (4) |
Peduncle 1-4 cm; leaf blade lanceolate, densely strigose
(8)
|
Trigonotis compressa
|
| 5 (4) + |
Peduncle to 1 cm; leaf blade broadly ovate to elliptic or orbicular, sparsely strigose.
|
(6)
|
| 6 (5) |
Leaf blade ovate to broadly elliptic, apex obtuse to emarginate; calyx lobes oblanceolate; corolla 3.5-4 mm wide
(9)
|
Trigonotis mairei
|
| 6 (5) + |
Leaf blade orbicular to broadly elliptic, apex retuse, mucronate; calyx lobes narrowly ovate; corolla 5-6 mm wide
(10)
|
Trigonotis orbicularifolia
|
| 7 (2) |
Corolla appressed puberulent; leaf blade to 6 cm; lateral veins prominent adaxially
(13)
|
Trigonotis heliotropifolia
|
| 7 (2) + |
Corolla glabrous; leaf blade less than 5 cm; lateral veins not prominent.
|
(8)
|
| 8 (7) |
Inflorescences bracteate throughout; pedicel twisted or recurved
(1)
|
Trigonotis delicatula
|
| 8 (7) + |
Inflorescences ebracteate or only lower half or lowermost 2 or 3 flowers bracteate; pedicel usually ascending.
|
(9)
|
| 9 (8) |
Plants gray-white villous.
|
(10)
|
| 9 (8) + |
Plants hispid.
|
(11)
|
| 10 (9) |
Leaf blade broadly ovate to rotund; corolla limb ca. 2.5 mm wide; calyx lobes obtuse at apex; stipe of nutlet straight
(6)
|
Trigonotis mollis
|
| 10 (9) + |
Leaf blade narrowly elliptic; corolla limb 5-6 mm wide; calyx lobes acuminate at apex; stipe of nutlet curved
(7)
|
Trigonotis vestita
|
| 11 (9) |
Corolla limb ca. 7 mm wide; leaf blade orbicular to reniform; nutlet ± sessile
(2)
|
Trigonotis rotundata
|
| 11 (9) + |
Corolla limb 4-6 mm wide; leaf blade oblong to elliptic; stipe of nutlet 0.2-0.3 mm.
|
(12)
|
| 12 (11) |
Stems densely gray hispid; leaves sessile; corolla 5-6 mm wide
(5)
|
Trigonotis barkamensis
|
| 12 (11) + |
Stems sparsely hispid or minutely strigose; leaves petiolate; corolla 3.5-4 mm wide.
|
(13)
|
| 13 (12) |
Stems much branched at base, strigose; stem leaves oblong; inflorescences with leaflike bracts to middle; angle at inner surface of nutlet indistinct
(3)
|
Trigonotis corispermoides
|
| 13 (12) + |
Stems unbranched or with 1 lateral branch, minutely strigose; stem leaves narrowly ovate to elliptic; inflorescences with 1 or 2 basal bracts only; angle at inner surface of nutlet obtuse
(4)
|
Trigonotis chengkouensis
|
| 14 (1) |
Nutlets with adaxial 3 surfaces subequal in size, sessile, attachment scar basal, abaxial surfaces triangular; inflorescences ebracteate.
|
(15)
|
| 14 (1) + |
Nutlets with adaxial bottom surfaces and abaxial ones usually arcuate-convex, adaxial bottom surface smaller, 2 lateral surfaces equal in size; inflorescences bracteate at least basally.
|
(24)
|
| 15 (14) |
Leaf blade broadly ovate to broadly elliptic.
|
(16)
|
| 15 (14) + |
Leaf blade lanceolate to oblong.
|
(18)
|
| 16 (15) |
Stems with sterile branches to 75 cm; leaf blade elliptic to rotund; pedicel ca. as long as calyx
(16)
|
Trigonotis omeiensis
|
| 16 (15) + |
Stems without sterile branches; leaf blade broadly ovate to broadly lanceolate; pedicel 1-2 × as long as calyx.
|
(17)
|
| 17 (16) |
Calyx lobes broadly ovate, obtuse, ca. 2 mm; inflorescences dichotomously branched
(14)
|
Trigonotis cavaleriei
|
| 17 (16) + |
Calyx lobes oblanceolate, acute, 2-3 mm; inflorescences with cymes 2- or 3-fascicled
(39)
|
Trigonotis funingensis
|
| 18 (15) |
Corolla white.
|
(19)
|
| 18 (15) + |
Corolla blue.
|
(20)
|
| 19 (18) |
Corolla 5-6 mm wide; calyx lobes lanceolate, apex acute; pedicel 3-7 mm
(19)
|
Trigonotis nankotaizanensis
|
| 19 (18) + |
Corolla 4-5 mm wide; calyx lobes obovate-spatulate, apex obtuse; pedicel 1-3 mm
(18)
|
Trigonotis elevatovenosa
|
| 20 (18) |
Corolla deep blue
(15)
|
Trigonotis leyeensis
|
| 20 (18) + |
Corolla light blue.
|
(21)
|
| 21 (20) |
Plants with runners
(17)
|
Trigonotis formosana
|
| 21 (20) + |
Plants without runners.
|
(22)
|
| 22 (21) |
Leaf blade lanceolate, apex acuminate; middle and upper stem leaves ± sessile; pedicel 5-6 mm; nutlets abaxially slightly convex, acutely 3-ribbed
(20)
|
Trigonotis giraldii
|
| 22 (21) + |
Leaf blade elliptic to elliptic-ovate, apex obtuse to acute; middle and upper stem leaves short petiolate; pedicel 2-4 mm; nutlets abaxially flattened or slightly concave, narrowly ribbed or winged.
|
(23)
|
| 23 (22) |
Nutlet cluster fastigiate, acute; corolla (2-)4-5 mm wide
(22)
|
Trigonotis laxa
|
| 23 (22) + |
Nutlet cluster cross-shaped; corolla 2-2.5 mm wide
(21)
|
Trigonotis floribunda
|
| 24 (14) |
Inflorescences bracteate.
|
(25)
|
| 24 (14) + |
Inflorescences bracteate only at base.
|
(26)
|
| 25 (24) |
Stems single, erect to spreading, without runners; nutlets glabrous, ca. 1 mm
(23)
|
Trigonotis bracteata
|
| 25 (24) + |
Stems usually cespitose, erect becoming creeping; nutlets pubescent, ca. 2 mm
(24)
|
Trigonotis radicans
|
| 26 (24) |
Plants annual or biennial; corolla white or light blue.
|
(27)
|
| 26 (24) + |
Plants perennial, rarely ?biennial; corolla blue or purple.
|
(28)
|
| 27 (26) |
Corolla white or light blue, ca. 3 mm wide; carpophore of nutlet curved
(37)
|
Trigonotis tibetica
|
| 27 (26) + |
Corolla white, ca. 4 mm wide; carpophore absent
(38)
|
Trigonotis leucantha
|
| 28 (26) |
Junction of calyx tube with pedicel distinctly thickened, clavate in fruit
(36)
|
Trigonotis peduncularis
|
| 28 (26) + |
Junction of calyx tube and pedicel not clavate.
|
(29)
|
| 29 (28) |
Corolla 7-8 mm wide
(35)
|
Trigonotis rockii
|
| 29 (28) + |
Corolla not exceeding 6 mm wide.
|
(30)
|
| 30 (29) |
Nutlet ca. 2 mm, without carpophore; corolla ca. 6 mm wide
(25)
|
Trigonotis myosotidea
|
| 30 (29) + |
Nutlet 1-1.3 mm, with or without carpophore; corolla 3-5 mm wide.
|
(31)
|
| 31 (30) |
Plants cespitose, ca. 20 cm.
|
(32)
|
| 31 (30) + |
Plants not cespitose, 20-60 cm.
|
(34)
|
| 32 (31) |
Corolla 1.7-2.2 mm wide
(28)
|
Trigonotis harrysmithii
|
| 32 (31) + |
Corolla ca. 3 mm wide.
|
(33)
|
| 33 (32) |
Leaf blade cordate to orbicular-ovate, apex acute; calyx lobes lanceolate; stipes of nutlets ± straight to ± curved
(26)
|
Trigonotis tenera
|
| 33 (32) + |
Leaf blade oblong to rotund, apex rounded, mucronate; calyx lobes ovate; stipes of nutlets distinctly curved, short
(27)
|
Trigonotis petiolaris
|
| 34 (31) |
Stems gray strigose; leaves subleathery
(34)
|
Trigonotis cinereifolia
|
| 34 (31) + |
Stems green strigose; leaves herbaceous.
|
(35)
|
| 35 (34) |
Corolla purple; fruiting pedicel 0.9-1.6 cm; stems branched from base upward
(29)
|
Trigonotis longipes
|
| 35 (34) + |
Corolla bluish; fruiting pedicel to 1 cm, if longer then stems simple or branched near base only.
|
(36)
|
| 36 (35) |
Fruiting pedicel to 2 cm
(30)
|
Trigonotis gracilipes
|
| 36 (35) + |
Fruiting pedicel to 0.8 cm.
|
(37)
|
| 37 (36) |
Nutlets ca. 1.2 mm; lateral leaf veins indistinct
(31)
|
Trigonotis muliensis
|
| 37 (36) + |
Nutlets ca. 1 mm; lateral leaf veins distinct at least adaxially.
|
(38)
|
| 38 (37) |
Lateral leaf veins 3 pairs, prominent, strigose abaxially; branches short
(32)
|
Trigonotis microcarpa
|
| 38 (37) + |
Lateral leaf veins 2 pairs, visible abaxially, scarcely prominent, pubescent; branches elongated
(33)
|
Trigonotis longiramosa
|
KUN官网