CRINS, TAMARICACEAE THE TAMARICACEAE IN THE SOUTHEASTERN UNITED STATES' WILLIAM J. CRINS'TAMARICACEAE Link, Enum. Hort. Berol. 1: 291. 1821, "Tamariscinae," nom. cons. (TAMARISK FAMILY) Small trees or shrubs [subshrubs] of temperate and subtropical deserts, steppes,and shorelines, on sands, clays, and saline soils. Wood ring-porous or semi-ring-porous; sieve-element plaslids of the S-type. Branches slender, persistentor deciduous. Root systems variable, ranging from taproots with relativelyshort lateral roots to extensively branched, horizontally spreading roots (brancheswhen buried often also producing adventitious roots). Leaves scalelike or small,alternate, simple, entire, usually sessile [rarely subpetiolate], exstipulate, sub-imbricate, [amplexicaul in some species of Ta7marix], often fleshy or punctate,with salt-secreting glands, usually glaucescent, with sclereids consistently pres-ent at or near vein endings; stomata anomocytic, on both surfaces of leaves 'Prepared for the Generic Flora of the Southeastern I nited States. a long-term project made possible h\ grants from the National Science Foundation and at this writing supported by BSR-S716834 (Notion (;. Miller. principal investigator), under owhich this account was prepared, and BSR-8717333 (Carroll E. Wood. Jr.. principal investigator). This treatment. 1291h in the series, follows the format established in the first paper (Jour. Arnold Arh. 39: 296-346. 1958) and continued to the present. The area covered by the Generic Flora includes North and South (arolina. Georgia, Florida. Ten-nessee. Alabama. Mississippi. Arkansas. and Louisiana. The descriptions are based primarily on the plants of this area. with information about extraregional members of a family or genus in brackets ([ . The reference I did not verify is marked with an asterisk. I have enjoyed working with Norton Miller and (arroll Wood on the Generic Flora project, and I lhank them for their interest and advice. lhsan A. AI-Shehba/ and Barbara Nimblett have helped frequently. Stephen A. Spongberg and Elizabeth B. Schmidl improved the final manuscript with their editorial precision and expertise. Thanks are extended to the stalfs of the New York State Library (especially Alta Beach. Senior Librarian) and the Bolan, 1 ibraries of Harvard I'niversity (especiallk Geraldine Kave. .ibrarian) for providing man\ references. I thank the curators of the following herbaria, who have sent specimens or provided access to collections and hospitality during my visits: A, AI.U, DAO. F, F.AS. FSII. (H, IS.I. LT., N(S(C, N('t. NO. NY. NYS. DARK, UNA. and USF. The illustration of 7 itimarx was prepared by Karen Stoutsenberger from dissections by Kenneth R. Robertson and (arroll Wood from material collected by R. F. tlmber (614, (iH: along the Rio (rande west of Mountaainar. Socorro Co.. New Mexlict) R. L. Wi lbur ('1i , cn; (arteret (o.. North Carolina) and I. S. Correll and S. B. Correll (i95'. (;i: C(ameron Parish. Louisiana). This treatment is published as contribution lnumlber 604 from the New York State Science Service. 'Biological Survey. New York State Museum I he State Education Department. Albany. New York 12230.(c President and Fellows of Harvard College, 1989.Journal of the .rnold A rboretum 70: 403-425. July. 1989.403