26. Sphagnum ovatum Hampe in C. Müll. 卵叶泥炭藓 luan-ye ni-tan xian
Linnaea 38: 546. 1874. Type. India: Darjeeling, Kurz 2104.
Plants soft, rather slender, pale green tinged with reddish or pale orange-brown, in loose tufts. Stem cortex in 1 layer, hyaline cells large, thin-walled, without fibrils and pores; central cylinder yellowish red. Stem leaves 1.0–1.4 mm × ca. 0.6 mm, ovate to ovate-ligulate with a narrower base, rounded and margins involute at the apex; hyaline cells undivided, densely fibrillose, with small, ringed pores at the opposite ends along commissural rows on the dorsal surface, with pores at the corners in the upper cells on the ventral surface. Branches in fascicles of 3(–4), with 2 spreading. Branch leaves 1.0–1.4 mm long, ovate, strongly concave, blunt at the apex, margins involute and borders differentiated; hyaline cells with numerous ringed pores at the opposite ends along commissural rows on the dorsal surface, with pores at the corners in the upper cells on the ventral surface; green cells in cross section narrowly elliptic, centrally located, narrowly exposed on both surfaces or exposed slightly more so on the dorsal surface. Dioicous. Sporophytes not seen.