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3–8(–12) cm, coriaceous or thin, lobes 0 or 3–5(–8) per side, sinuses shallow, max LII usually 20%, veins (3–)5–8 per side, absent to sinuses. Inflorescences:

trianthophoros, Triphora yucatanensis Nuttall Gen. N. Amer. Pl. 2: 192. 1818. Max E. Medley Common names: Three-birds orchid Etymology: Greek tri, 3-fold, and

matte, lobes small, max LII ca. 10%; flowers 10–14 mm diam.; pomes dull; n Okanagan. Crataegus atrovirens 6 Leaves shiny, lobes larger, max LII 15–25%; flowers

trianthophoros (Swartz) Rydberg in N. L. Britton, Man. Fl. N. States, 298. 1901. Max E. Medley Common names: Nodding pogonia Illustrated Basionym: Arethusa trianthophoros Swartz

flowering), thin-chartaceous, base cuneate, lobes 2–4 per side, sinuses: max LII 20%, lobe apex acute, margins serrate, teeth small, veins 4 or 5 per side

cuneate to cuneate-rounded, lobes 2–4 per side, sinuses moderately deep, max LII (0–)15–25%, lobe apex subacute to acute, margins crenate-serrate or serrate

sinuses deep (max LII 25–50%), lobe apices usually ± narrowly cuspidate. Crataegus incilis 5 Lobes 1–4 per side, sinuses shallow (max LII 10–30%), lobe

genusTriphora speciesTriphora yucatanensis Ames Orchidaceae 7: 39, plate 109. 1922. Max E. Medley Synonyms: Triphora rickettii Luer Treatment appears in FNA Volume

genusTriphora speciesTriphora craigheadii Luer Brittonia 18: 243, figs. 5–8. 1966. Max E. Medley Endemic Treatment appears in FNA Volume 26. Treatment on page 595

broadly elliptic, bases rounded to broadly cuneate, lobe apices subacute, max LII 5–10%, veins 6 or 7 per side; Great Lakes region and eastwards. Crataegus

mm diam.; pomes 8–15 mm diam > 3 3 Leaf blades ± ovate, sinuses shallow (max LII 15–20%), proximal lobes almost never most deeply separated, spreading

speciesTriphora amazonica Schlechter Beih. Bot. Centralbl. 42: 75. 1925. Max E. Medley Synonyms: Triphora latifolia G. M. Luer Treatment appears in FNA

very broadly cuneate, lobes 3 or 4 per side, sinuses very shallow to ± deep, max LII 5–20%, lobe apex acute, margins serrulate, venation camptodromous, veins

gentianoides (Swartz) Ames & Schlechter in O. Ames, Orchidaceae 7: 5. 1922. Max E. Medley Illustrated Basionym: Limodorum gentianoides Swartz Prodr., 119

rhombic, lobes distinct, 2 or 3 per side, sinuses shallow to moderately deep, max LII 15–40%, veins 4 or 5 per side. Crataegus viridis var. viridis 2 Leaf blades

elliptic, 4–6(–7) cm, subcoriaceous, base cuneate, lobes 3 or 4 per side, small, max LII ca. 10%, lobe apex acute, margins serrulate, minutely glandular at apices

base cuneate to broadly cuneate, lobes (2 or)3 or 4 per side, pronounced, max LII 15–25%, lobe apex acute, margins serrate, teeth numerous, small, acute

speciesTriphora trianthophoros subspeciesTriphora trianthophoros subsp. trianthophoros Max E. Medley Illustrated Synonyms: Triphora trianthophora var. schaffneri Camp

blades ± ovate, 3–6 cm, base rounded to broadly cuneate, sinuses shallow (max LII 15–20%). Inflorescence branches glabrous. Flowers 24–26 mm diam. Pomes

Leaf blades narrowly ovate, 3–4 cm, base ± narrowly cuneate, sinuses deep (max LII 15–20%). Inflorescence branches sparsely pubescent. Flowers 15–20 mm diam

pink; nw Montana. Crataegus macracantha 7 Leaf blade sinuses moderately deep, max LII 25–33%, lobe apices acute to acuminate; pyrene sides ± deeply concave;

20–30 dm. Leaves: blade ± ovate to rhombic-ovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

20–30 dm. Leaves: blade ovate to rhombic-obovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

(young) to chartaceous (mature), lobes 0 or 1–3 per side, evident or obscure, max LII 10%, lobe apex acute, margins serrate, teeth 0.5 mm, apex acute, adaxial

anthesis, length/width = 1.3, chartaceous, lobes 1 or 2 per side, evident, max LII 20%, lobe apex obtuse, margins serrate, teeth 1 mm, apex subacute to obtuse

else rarely 1 per side, distinct, but not on most leaves, sinuses shallow, max LII 5(–20)%, margins serrulate-crenate, mainly in distal 2/3, sometimes entire

cuneate, lobes 2 or 3 per side, distinct, sinuses shallow to moderately deep, max LII 15–40%, lobe apex acute to subacute, margins crenate-serrate, teeth 1

Leaf blades ± ovate, 3–6 cm, base subtruncate to rounded, sinuses shallow (max LII 15–20%), proximal lobe almost never most deeply separated, spreading at

20–30 dm. Leaves: blade ovate to rhombic-ovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

20–30 dm. Leaves: blade ovate to rhombic-ovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

coriaceous, base ± rounded, lobes 0 or 1–3 per side, sinuses shallow to deep, max LII 5(–20)%, margins crenate, teeth 1 mm, venation craspedodromous, veins

(young) to chartaceous or subcoriaceous (mature), lobes 0, or 1 or 2 per side, max LII 10%, lobe apex acute, margins crenate to serrate, teeth 0.5–0.8 mm, apex

length/width = 1.3, thin to chartaceous, lobes 0 or 1 per side, obscure, max LII 10%, lobe apex usually obtuse, margins serrate, teeth 0.5 mm, apex usually

anthesis, length/width = 1.4–1.5, subcoriaceous, lobes 0 or 1–3 per side, max LII 15%, lobe apex acute, margins serrate distally, teeth 1.5 mm, apex subacute

ovate to ovate-oblong, 3–6 cm, base rounded to subtruncate, sinuses deep (max LII 25–40%), proximal lobe most deeply separated, spreading at 60º–80º. Inflorescence

20–30 dm. Leaves: blade ovate to rhombic-obovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

20–30 dm. Leaves: blade ovate to rhombic-ovate, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 3–5 per side, abaxial surface glabrous

20–35 dm. Leaves: blade ovate to rhombic-ovate, base ± cuneate, sinuses: max LII 10–15%, lobe apex subacute, veins 3 or 4 per side, abaxial surface glabrous

broadly ovate or broadly elliptic, base rounded to broadly cuneate, sinuses: max LII 5–10%, lobe apex subacute, veins 6 or 7 per side, abaxial surface sparsely

rhombic to narrowly rhombic or rhombic-elliptic, base ± cuneate, sinuses: max LII 15–20%, lobe apex acute, veins 5 or 6 per side, abaxial surface persistently

thin, base cuneate, lobes 2–4 per side, sides ± bowed, sinuses shallow, max LII 10–30%, lobe apex obtuse to subacute, margins serrulate, ± distant from

side, distinct, but not on most leaves, usually very short, sinuses shallow, max LII 5(–20)%, lobe apex obtuse, margins finely crenate-serrate, rarely serrate

elliptic or narrowly ovate, 4–7 cm, base cuneate, lobes 0 or 1–3, obscure, max LII 10%, margins crenate or crenate-serrate, veins 8 or 9 per side (fewer

mature at anthesis), base cuneate, lobes 2 or 3 per side, sinuses shallow, max LII 10–30%, lobe apex acute, margins with extremely small teeth, veins 5 or

subcoriaceous, base tapered, lobes 0, or 1 or 2(or 3) per side, sinuses shallow, max LII (0–)5–10(–20)%, margins strongly serrate (teeth 2–3 mm), venation craspedodromous

into distal winged part of petiole), lobes 3 or 4 per side, sinuses deep, max LII 25–50%, lobe apex usually ± narrowly cuspidate, margins dentate, teeth

cuneate to nearly truncate, lobes 5 or 6 per side, sinuses moderately deep (max LII 15%), lobe apex acute, ± triangular, margins serrulate, veins 5–7 per

to broadly cuneate, lobes (4 or)5 or 6 per side, sinuses moderately deep, max LII 25–33%, lobe apex acute to acuminate, margins with regular, acute teeth

broadly elliptic, 3–6 cm, thin, base broadly cuneate, lobes 3 or 4 per side, max LII ca. 15%, lobe apex acute to ± rounded, margins serrate, teeth numerous

subcoriaceous, base cuneate to narrowly cuneate, lobes 4 or 5 per side, sinuses deep (max LII 25–35%), lobe apex acute to acuminate, margins ± serrate, teeth numerous

anthesis, 4–8 cm mature, base cuneate to narrowly cuneate, lobes 2–4 per side, max LII (0–)5–20(–25)%, lobe apex subacute to broadly cuspidate, margins finely

at anthesis, 3.5–4.5(–5) cm mature, base cuneate, lobes 2 or 3 per side, max LII 15–25%, lobe apex acute, margins serrulate or crenate-serrate, veins 3

mature, base cuneate to broadly cuneate or rounded, lobes 3 or 4 per side, max LII 15–25%, lobe apex acute, margins serrulate or crenate-serrate, veins 5–8

densely persistently glandular; leaf blades ± rhombic, lobes 2–4 per side, max LII 20%, lobe apices acute, apices acuminate, veins 4 or 5 per side, green