Differentiating features of Carex sg. Vignea N2 spikes m/f in Mongolia
Carex sg. Vignea N2 spikes m/f
– Flora Sibirica 3: 77ff): sections Boernera, Holarrhenae & Incurvae
Content:
- C. curaica
- C. pseudocuraica
- C. enervis
- C. pseudofoetida
- C. reptabunda
- C. sajanensis
- C. duriuscula
- C. stenophylla
- C. stenophylloides
| Species | C. curaica | C. pseudocuraica |
| Kunth | Fr. Schmidt | |
| Syn. | ||
| Sect. | Holarrhenae | Holarrhenae |
| Flora Sibirica 3:page | 77 | 79 |
| Grubov | 102 | – |
| Stigmas | N2 | N2 |
| Spikes upper/lower | m/f, often m/f/m | m/f, often m/f/m |
| Descr. | Sg. Vignea, spikes with male flowers on top, female flowers below, habit slightly similar to C. disticha, middle spiklets also sometimes purely staminate, but rarely leafy strap-like shoots | Sg. Vignea, spikes with male flowers on top, female flowers below, sometimes upper ones entirely staminate, habit slightly similar to C. disticha, with leafy strap-like shoots |
| growth | creeping with long, thick rhizomes, shoots solitary or in fascicles, but distant | creeping with long, thick rhizomes, shoots distant and solitary |
| habitat | bogs & mires | bogs & mires |
| rhizome | 2.5-3.5 mm diam., bark thick, never crumbling | 2.5-5.0 mm diam., bark thick, never crumbling |
| stems | triangular, scabrous, 1.5-2 mm diam, 20-50 cm tall | |
| sheaths | brown, usually entire | |
| leaves | flat, 3-5(-7) mm wide | narrow, 1-1.5 mm wide |
| inflo | 1.5-3 cm long, compact | 1.5-3 cm long, compact |
| perigynia | 3-3.5 mm long, elongate-ovate, with 5-7 prominent costate veins, light straw-coloured, somewhat nitid, beak membraneous at the tip, not divided | light coloured, broadly lanceolate, gradually narroweed and with narroww crenate wings, spongy tissue at base, nearly undivided short beak |
| glumes | cinnamon to brown, narrow light-coloured margin, shorter than perigynium | cinnamon, broad light-coloured margin, broadly lanceolate, as long or longer than perigynium |
| nut | wholly filling perigynium | wholly filling perigynium |
| Species | C. enervis | C. pseudofoetida | C. reptabunda | C. sajanensis |
| C.A. Meyer | Kük. | (Trautv.) V.Krecz. | V.Krecz. | |
| Sect. | Incurvae | Incurvae | Incurvae | Incurvae |
| Flora Sibirica 3:page | 80 | 81 | 81 | 82 |
| Grubov | 102 | 102 | 102 | 102 |
| Stigmas | N2 | N2 | N2 | N2 |
| Spikes upper/lower | m/f -> m//f | m/f -> m//f | m/f -> m//f | m/f -> m//f |
| Descr. | Sg. Vignea, spikes with male flowers on top, female flowers below, often upper spikes purely staminate, lower purely pistillate | Sg. Vignea, spikes with male flowers on top, female flowers below, often upper spikes purely staminate, lower purely pistillate | Sg. Vignea, spikes with male flowers on top, female flowers below, often upper spikes purely staminate, lower purely pistillate | Sg. Vignea, spikes with male flowers on top, female flowers below, often upper spikes purely staminate, lower purely pistillate |
| growth | creeping with long, rather thick rhizomes, shoots usually solitary | creeping with long, rather thick rhizomes, shoots usually solitary | creeping with long, rather thick rhizomes, shoots usually solitary | creeping with long, rather thick rhizomes, shoots usually solitary |
| habitat | bogs & mires | bogs & mires | bogs & mires | bogs & mires |
| rhizome | 1.5-2.0 mm diam., bark peeling off when dry, often crumbling | 1-3 mm diam., bark peeling off when dry, often crumbling | 1-2 mm diam., bark peeling off when dry, often crumbling | 2.5-5.0 mm diam., bark peeling off when dry, often crumbling |
| stems | triangular, scabrous above, 10-45 mm tall | nearly cylindical, hollow, 2-2.5 mm diam, smooth | nearly cylindical, solid, 0.8-1.3 mm diam., 15-60 mm tall, smooth but scabrous above | nearly cylindical, solid, 0.8-1.3 mm diam., 5-20 mm tall |
| sheaths | ||||
| leaves | flat, 0.5-2.5 mm wide | flattened, 2-4 mm wide | folded, 1-2 mm wide | folded, 1-2 mm wide |
| inflo | 1-2 cm long, ovate | 1-2 cm long | 0.5-1.5 cm long | 0.5-1.5 cm long |
| perigynia | 3-4 mm long, not inflated, flat-convex, ovate to narrowly ovate, with scabrous margins and beak, brown | 3.5-4.5 mm long, inflated, biconvex, abruptly narrowed into smooth or slightly biconvex beak, veins indistinct or lacking, nitid, brown | 3.5-4.0 mm long, inflated, biconvex, with smooth or slightly biconvex beak, veins indistinct | 3.0-3.5 mm long, inflated, biconvex, gently narrowed into smooth or slightly biconvex beak, indistinct veins in lower part |
| glumes | brown or dark brown, acute, nearly as long as perigynia | dark chestnut | cinnamon, acute, slightly shorter than perigynia, | brown, with light-coloured margin, slightly shorter than perigynia |
| nut | not wholly filling perigynium | not wholly filling perigynium | not wholly filling perigynium | not wholly filling perigynium |
| Species | C. duriuscula | C. stenophylla | C. stenophylloides |
| C.A. Meyer | Wahlenb. s.str. | V.Krecz | |
| Syn. | C. stenophylla ssp. stenophylloides | ||
| (V.Krecz.) Egor. | |||
| Sect. | Boernera | Boernera | Boernera |
| Flora Sibirica 3:page | 62 | 63 | 63 |
| Grubov | 101 | – | 101 |
| Stigmas | N2 | N2 | N2 |
| Spikes upper/lower | m/f | m/f | m/f |
| Descr. | Sg. Vignea, spikes with male flowers on top, female flowers below, long-ovate inflorescence | Sg. Vignea, spikes with male flowers on top, female flowers below, long-ovate inflorescence | Sg. Vignea, spikes with male flowers on top, female flowers below, long-ovate inflorescence |
| growth | creeping with long, thin rhizomes, shoots in fascicles | creeping with long, thin rhizomes, shoots in fascicles, young roots gray | creeping with long, thin rhizomes, shoots in fascicles, young roots cinnamon |
| habitat | steppe | steppe | steppe |
| rhizome | 1.0(-1.5) mm diam., bark thin, ttached, not crumbling | 1.0-1.5 mm diam., bark thin, attached, not crumbling | 1.0-1.5 mm diam., bark thin, attached, not crumbling |
| stems | 5-15 cm tall | obtusely triangular, scabrous to nearly smooth above, 10-40 mm tall | obtusely triangular, nearly smooth, 10-40 mm tall |
| sheaths | fibrous, gray | nearly entire, dark brown | entire to slightly fibrous, ash brown |
| leaves | setaceous, 0.8-1.8 mm wide | folded, (0.7-)1.5-2.5 mm wide | folded, 2-3 mm wide |
| inflo | 0.5-1.5 cm long | 1.5-2.5 cm long | 1.5-2.5 cm long |
| perigynia | 2.5-3 mm long, not inflated, broad-ovate, abruptly narrowed into a short beak, no veins, coriaceous, somewhat nitid | 3.5-4.5 mm long, broadly ovate, cinnamon, nitid, with veins, gradually narrowd into short, slightly scabrous beak | 4-4.5 mm long, gradually narrowed into short, slightly scabrous beak, with veins |
| glumes | ovate to subacute, cinnamon, with very narrow whitish margin, as long or shorter than perigynia | ovate to subacute, cinnamon, with very narrow whitish margin, as long or shorter than perigynia | ovate to subacute, cinnamon, with broad whitish margin, as long or shorter than perigynia |
| nut | wholly filling perigynium | wholly filling perigynium | wholly filling perigynium |
data compiled by: M. Schnittler