HIOWARI), STI DIES OF TIlE I(:ACIN \CEAE. I STUDIES OF TILE ICACINACEAE, I PRELIMINARY TAXONOMIC NOTES RICHARD A. I OWARD lf'ith four plates MORPHOLOGICAL STUDIES of the Icacinaceae are now in progress.These include studies of the wood and twig anatomy, nodal structure,pollen grain variations, as well as the leaf and flower structure. In thepresent paper I have presented some taxonomic notes required for theproper presentation of some of the anatomical findings which will bepublished in a following paper. A taxonomic treatment of this family has long been desirable, sincethe only comprehensive survey is Valeton's C'ritisch (verzicht derOlacineae published 54 years ago in 1886. Valeton, agreeing withBentham and Hooker, treated the Icacinaceae as part of the Olacaceaealthough liers had pointed out many years before that these familiesshould be separated. A. Engler prepared the revision for the NatiirlichenPilanzenfamilien in 1893. Since that date little has been published onthe family. The present paper is one preliminary to a monographicstudy of the family. The author is grateful for specimens generously loaned by the curatorsof the following herbaria. Arnold Arboretum, Harvard University (A),Field Museum, Chicago (FM), Gray Herbarium, Harvard University(G), New York Botanical Garden (NY), University of California(UC), U. S. National Museum, Washington, D. C. (US). STEMONlR US Bh �MSStemonurus Blume, Bijdr. Flor. Nederl. Indie 13: 648. 1825, as to generic description; Miers, Ann. Mlag. Nat. Hist. ser. II, 10:30. 1852, in part; Miers, Contrib. 1: 80. 1851 61, in part; O. Kuntze, Rev. Gen. 2: 112. 1891; Engler, Nat. Ptlanzenfam. III. 5:249. 1893. (omphandra Wallich in Roxburgh. 11. Ind. 2: 329. 1824, nom., Nuin. List, no. 3718 (1830), no. 7204 (1832) nom., \Wallich ex Lindl. Nat. Syst. ed. 2, 439. 1836; Benth. & H ook. (;en. 'l1. 1: 350. 1862: Val. Crit. Overz. Olac. 207. 1886.1940]
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