Cyperus prophyllatus: An endangered aquatic new species of Cyperus L. (Cyperaceae) with a exceptional spikelet disarticulation pattern among about 950 species, including molecular phylogenetic, anatomical and (micro)morphological data
Fig 2
Photographs of Cyperus prophyllatus, sp. nov. Taken from holotype A.R.O. Ribeiro et al. 487 (CVRD).
(A–B) Floating population in its natural habitat. (C–D) Leaves in spiral phyllotaxis spacing along the culm. (E–F) Leptomorph floating rhizome. (E) Detail showing cataphylls and roots. (F) Cross section revealing hollow internode. (G) Ligule with ciliate hairs at apex. (H) Inflorescence with detail of ultimate order branch below. (I) Spikelets showing its prophyll attached at base. (J) Detail of protuberant rachilla articulation persistent at the base of the spikelet prophyll. (K) Achene with style persistent at apex. Scale bars: G, I–K = 1 mm.