Iris Both

Crespo, Manuel B., Martínez-Azorín, Mario & Mavrodiev, Evgeny V., 2015, Can a rainbow consist of a single colour? A new comprehensive generic arrangement of the ‘ Iris sensu latissimo’ clade (Iridaceae), congruent with morphology and molecular data, Phytotaxa 232 (1), pp. 448-450 : 448-450

- just above the ovary; pedicels usually not stiff after flower abscission; seeds mostly unwinged, sometimes with fleshy cover or fleshy appendages................................................................................................................................................ 8 Both perigone whorls usually similar in size and shape; beard (a very conspicuous central row of thick pluricellular, multiseriate, clavate hairs) present on falls and sometimes also on standards; fruit opening by clefts, the valves remaining fused apically for a long time after dehiscence.................................................................................................... 1. Iris Both perigone whorls usually strongly differing in size and/or shape; beard absent, or falls sometimes crested, pubescent or with slender unicellular hairs; fruit valves splitting completely from the apex up to about the middle................ 9 Falls markedly crested, with 1–3 fringed, irregularly dissected or wavy (rarely almost entire) rows............................. 10 Falls uncrested, sometimes with a low central ridge ....................................................................................................... 14 Rhizome slender, long, heterogeneous, with cord-like branches at apex, swollen at nodes; leaves herbaceous, without prominent ribs; falls with crest of 3 fringed rows; seeds with a long, coiled appendage ............................... 24. Lophiris Rhizome lacking cord-like branches at the apex; leaves ± coriaceous, with 1–5 prominent ribs; falls with crest of a single fringed row, sometimes with lateral outgrowths; seeds lacking coiled appendages ...................................................11 Fall crest wavy to almost entire; stigma oblong to triangular, entire; capsule beaked ............................. 14. Zhaoanthus Fall crest fringed or dissected; stigma bilobed, with broad lobes; capsule ± pointed, not beaked .................................. 12 Rootstock a small rhizome, with many swollen tuberous roots; perigone pieces entire or weakly erose-undulate on margins; fall crest not flanked with lateral pairs of outgrowths near the base........................................................ 7. Junopsis Rootstock a thick rhizome, usually nodose and sometimes stoloniferous, lacking swollen, tuberous roots; perigone pieces markedly undulate-erose on margins; fall crest flanked with 2–3 lateral pairs of outgrowths near the base ....... 13 Haft of the standards inconspicuous, short, nearly flat; capsule subcoriaceous; seeds brownish, matte, irregular in shape, angulose, ± flattened .......................................................................................................................................... 6. Evansia Haft of the standards conspicuous, long, canaliculate; capsule papery; seeds blackish, glossy, globose-pyriform, apiculate....................................................................................................................................................................... 8. Tectiris Stigma triangular or linguiform, entire or with crenate margins ..................................................................................... 15 Stigma bilobed to bifid, sometimes with denticulate lobes.............................................................................................. 20 Style crests long triangular-lanceolate, straight; capsule conspicuously beaked............................................................. 16 Style crests broadly triangular to roundish, ± incurved; capsule unbeaked or shortly beaked ........................................ 17 Falls smooth, with nectar drops at the base; stamen filaments fused into a tube; seeds wrinkled, not lustrous, covered with glistening glands, lacking fleshy appendages ................................................................................. 25. Siphonostylis Falls with a central band of minute, velvety pubescence, lacking nectar drops at the base; stamen filaments not fused into a tube; seeds ribbed, lustrous not glandulose, with a fleshy raphe ....................................................... 4. Gattenhofia Rhizome slender, long, heterogeneous, with cord-like branches at apex, swollen at nodes; leaves herbaceous, without prominent ribs; seed surface pitted ......................................................................................................... 23. Rodionenkoa Rhizome lacking cord-like branches at apex; leaves usually with prominent ribs; seed surface not pitted .................... 18 Leaves firm, coriaceous, up to 40 mm wide; seeds angulose, discoid or semidiscoid, usually corky, with surface smooth or papillate......................................................................................................................................................... 9. Limniris Leaves slender, up to 15 mm wide; seeds globose to pyriform, sometimes compressed, not corky, with surface ± smooth, sometimes shiny ................................................................................................................................................. 19 Rhizome slender, to 5 mm in diameter; perigone tube up to 15 mm long; capsule globose to ovoid, 10–15 mm in diameter; seeds with a fleshy appendage vanishing on drying .................................................................................... 10. Joniris Rhizome stout, to 10 mm in diameter; perigone tube up to 3 mm long; capsule oblong-cylindrical to fusiform, 20–80 mm long; seeds without fleshy appendages .................................................................................................... 11. Eremiris Rhizome almost vertical; style crests lanceolate-triangular............................................................................................. 21 Rhizome long, creeping; style crests broadly triangular, subquadrate (rarely narrowly triangular)............................... 23 Rootstock with needle-like bristles at the apex; leaves swollen at the base, bulbiform; spathe valves 2; perigone tube up to 2 cm long; capsule unbeaked; seeds tuberculate, necked ....................................................................... 18. Syrianthus Rootstock covered with brownish remains of leaf sheaths, not spiny; leaves not bulbiform at the base; spathe valves 3–4; perigone tube 4–12 cm long; capsule beaked; seeds wrinkled, unnecked............................................................... 22 Stems absent or hidden among leaf remains; perigone tube scapiform; crest triangular-lanceolate to oblong-lanceolate, irregularly fringed on margins; capsule 6-ribbed, not reticulate-nerved.................................................... 16. Cryptobasis Stems distinct; perigone tube not scapiform; crests narrowly triangular-lanceolate to linear, with slightly crenate to almost entire margins; capsule, trigonous, reticulate-nerved................................................................... 12. Sclerosiphon Haft of falls patent, without a central ridge; capsule conspicuously beaked; seed testa fleshy and smooth or loose-papery with irregularly ridged surface................................................................................................................... 21. Chamaeiris Hafts of falls erect, with a central ridge; capsule with rounded to acute apex, rarely with a short beak; seed testa corky or hard, with wrinkled or smooth surface............................................................................................................................. 24 Falls glabrous; capsule rounded in cross section; seeds nearly globular, with testa wrinkled......................... 22. Dielsiris Falls pubescent on or aside ridge; capsule ± hexagonal in cross section; seeds semidiscoid to discoid, flattened, ± angulose, with testa corky, ± smooth ....................................................................................................................... 13. Phaeiris

68 • Phytotaxa 232 (1) © 2015 Magnolia Press

CRESPO ET AL.