FIGURE 2 in Pollen morphology of Stellaria (Caryophyllaceae) from China and its systematic implications

FIGURE 2. SEM micrographs of pollen grains of Stellaria. Type–1. Stellaria alaschanic type: a–d. S. nipponica; e–f. S. pilosoides; g–h. S. souliei; i–j. S. uda. Type–2. Stellaria dichotoma type: k–l. S. amblyosepala; m–n. S. delavayi; o–p. S. dichotoma; q–r. S. dichotoma var. linearis; s–t. S. graminea var. viridescens; u–x. S. infracta. Scale bars: a, c, e, g, i, k, m, o, q, s, u, w = 4 μm; b, d, f, h, j, l, n, p, r, t, v, x = 2 μm.