Lagarosiphon verticillifolius Oberm.

Stems 0.5-1 mm in diameter, fairly firm, densely leafy. Leaves in verticils of 5-7, occasionally sub-whorled; lamina spreading, soft, thin, transparent, linear, average size 10 mm(up to 2 cm) long and 0.5 mm broad; margin chlorophyllous, teeth many, short, acicular, pointing out-and upwards, emerging from a triangular excrescence; with a few cell-rows beside the midrib slightly larger, lacunar, the outer row with thickened walls. Male inflorescence with the spathe-valves lanceolate, convex, 2.5 mm long and 1 mm broad, acute, with a few marginal teeth. Female inflorescence with the spathe-valves ovoid below, tubular above, apex bifid, occasionally with a few marginal teeth; perianth white, stigmatic arms long with large papillae; ovary with 9-12 ovules, funicle straight, shorter than the ovule. Capsule ovoid, 5 mm long and 2 mm broad, elongated at the apex; seeds 1.5 mm long, narrowly grooved and with some papillae.