Studies in Cyperaceæ. — XIX. Novelty in Lipocarpha : L. raynaleana and its vegetative anatomy

One set of collections without a name is named commemorating Dr. J. Raynal, described and illustrated.The végétative anatomy of this new taxon is also described and compared with that of its presumed relative L. sphacelata.Both anatomical and taxonomical keys including this novelty are presented for the identification of ail the South Indian species.Résumé : Une nouvelle espèce de Lipocarpha, dédiée à Jean Raynal, est décrite et illustrée.Son anatomie végétative est décrite et comparée à celle de L. sphace¬ lata, dont elle est supposée affine.Des clés taxonomique et anatomique per¬ mettent la détermination des 3 espèces désormais reconnues dans le Sud de l'Inde.E. Govindarajalu, Department of Botany, Presidency College, Madras-600.005, south India.Lipocarpha raynaleana Govindarajalu, sp.nov.-PI.I. Herbæ annuæ.Radices aliquanto crasste, purpureo fusceæ.Culmi glauco-virides ( ubi novi), post demum brunnei evadentes, fasciculati, plerumque recurvati (oblique erecti), rigidi, subteretes, lævi,foliati ad basim, (2.5-) 5-15 (-20) cm x 0.8-1.0mm.Folia linearia, culmo æquilonga vel leviter longiora, rigida, stepe curvata, involuta, canaliculata, acuta, glauco-viridia (ubi novi), post demum brunnea evadentes, eligulata, lævia per totum vel ad apicem minute scabrida, 1-2 mm lata ; vaginæ infirme 1-2 pallide brunneæ (stramineæ) membranaceæ, multinerviæ, latte, subacutæ cum margine hyalino.Inflorescentia capitata, 3-4-spiculata, spiculis confertim disposais, 8-15 x 10-15 mm.Bracteæ involucrales 2-3, inæquales, plerumque recurvatte (patentes vel oblique erectæ), basi dilatatæ, foliiformes, pluries longiores quant inflorescentiæ, bractæ longissimæ usque ad 13 cm longæ.Spicutæ oblongo-ovatæ, teretes, obtusæ conicales, sessiles, spiculæ centrales 8-10 X 5-6 mm ; spiculte latérales 6-8 x 4-5 mm.Glumæ laie spathulatæ, carinatte, apice subcucullatæ, persistentes, spiraliter dispositæ, dense imbricatæ, prominenter dilatatæ ad apicem, plerumque apice incurvatæ, aliquantum crassæ, coriaceæ, tannin punctatæ, in medio valde trinerviæ cum 3-4 nervis lateralibus validis utroque latere, 2.5-3.0X 1.5-1.8mm, nervo mediano excurrenti in prominentem mucronem, mucrone 0.5-0.6 mm longo.Squamellæ (scalæ hypogynæ) 2, ellipticæ, obtusæ vel acutæ, membranacæ, valde 3-7-nervatæ, hyalinæ, glumis fere æquilongæ, 2.0 X 1.5-2.0mm.Stamina 1-2, antheris elliptico-oblongis, apiculatis, minutissimis, 0.5 mm longis.Stylus 0.5-0.8mm longus ; stigmata 3, stylo æquilonga.Nux anguste elliptica vel elliptico-ovata, recta, triquetra cum lateralibus depressis, sessilis, distincte rostrata, dense granulata, lævis, atrobrunnea, longitudine j squamellæ æquantia, 1.5 X 0.5-0.6 mm; cellulæ extimæ epicarpicæ subhexagonales, utroque latere regulariter dispositæ.