Endemic families of Madagascar. V. A synoptic revision of Eremolaena, Pentachlaena and Perrierodendron (Sarcolaenaceae) Author Lowry Ii, Porter P. Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166 - 0299, U. S. A & Laboratoire de Phanérogamie, Muséum national d’Histoire naturelle, 16 rue Buffon, 75005 Paris, France. lowry@mobot.org & lowry@mnhn.fr Author Haevermans, Thomas Laboratoire de Phanérogamie, Muséum national d’Histoire naturelle, 16 rue Buffon, 75005 Paris, France. haever@mnhn.fr Author Labat, Jean-Noël Laboratoire de Phanérogamie, Muséum national d’Histoire naturelle, 16 rue Buffon, 75005 Paris, France. labat@mnhn.fr Author Schatz, George E. Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166 - 0299, U. S. A schatz@mobot.org Author Leroy, Jean-François Laboratoire de Phanérogamie, Muséum national d’Histoire naturelle, 16 rue Buffon, 75005 Paris, France Author Wolf, Anne-Elizabeth Laboratoire de Phanérogamie, Muséum national d’Histoire naturelle, 16 rue Buffon, 75005 Paris, France. aewolf@mnhn.fr text Adansonia 2000 3 2000-12-31 22 1 11 31 journal article 310475 10.5281/zenodo.4605658 428d624e-afaf-4b79-9195-aeec9d5515de 1639-4798 4605658 2. Pentachlaena latifolia H. Perrier Bull. Mus. Natl. Hist. Nat. 26: 669 (1920). — Type: Perrier de la Bâthie 13096 , Madagascar , Prov. Antananarivo , rocailles, quartzite, Mt. Ibity , 1500 m , [ 20°07’S , 47°01’E ], Apr. 1920 ( holo- , P !; iso- , K !, MO !, P !). Pentachlaena latifolia is restricted to quartzite substrates in the Ibity and Analabe massifs ( Fig. 3 ), forming shrubs to small trees ( 5-6 m tall) that can be distinguished by their broadly elliptic to orbicular leaves, and flowers that are subsessile or borne on short peduncles less than 8 mm long, and subtended by short, entire to slightly dentate bracts. This species appears to be able to tolerate fires by forming new shoots from the base after burning. Pentachlaena latifolia has been collected recently at Ibity, but has never been recorded in any of Madagascar’s protected areas. MATERIAL EXAMINED. — Bernardi 11591 , Col des Tapias ; Dorr 4524 , Ibity ; Lowry & Schatz 4818 , Ibity ; Morat 3194 , Ibity ; Perrier de la Bâthie 1998 , Ibity , 2112 , Bois des Tapias , 13096 , 17903 , 18499 , Ibity ; Rakotozafy 435 , Ibity ; Service Forestier 22668 , Ambohimanjaka-Fierenantsoa , 23490 , Analabe-Ampandrianambilapa , 27393 , Analabe ; Viguier 1496 , Ambohiponana .