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216 FIELDIANA: BOTANY, VOLUME 28 30 feet tall, slender with oblong shape; leaves firmly membranaceouschartaceous, deep green above, dull pale green below". Local name: "chara". Pile a venosa Killip, nom. nov. URTICACEAE 15 Pilea succulenta Wedd. Arch. Mus. Hist. Nat. [jParis ] 9: 256. 1856, not Hook, f., 1847. MoNAGAS: Cerro de la Cueva de Dona Anita, valley of Caripe, alt. 1100 m., Julian A. Steyermark 61896. ANZOATEGUI: confluence of Rio Leon with Ri'o Zumbador, northeast of Berganti'n, alt. 400-500 m., Steyermark 61215 ("guritoto Colorado"). This species was based upon Funck's 145, and in my revision of the Andean species of Pilea (Contr. U.S. Nat. Herb. 26: 509. 1939) was tentatively treated as a synonym of P. mollis Wedd., a plant of north-central Venezuela. The type locality was given by Weddell as "In terras caracasanis, prope Gucharosa" in the "Archives" and as "In ditione Caracas, prope Guacharos" in DC. Prodromus 16, pt. 1: 150. In all probability this is Guacharo, situated in Monagas, between the Cerro Turumiquire and Caripe. Steyermark's material shows that this species is clearly distinct from P. mollis. The stipules are larger and more persistent than in P. mollis; the cystoliths, though slenderer, are far more numerous; and the pedicels of the staminate flowers are proportionately shorter. 15 By E. P. Killip
BOTANICAL EXPLORATION IN VENEZUELA - I 217 PROTEACEAE Euplassa Glaziovii (Mez) Steyerm., comb. nov. Adenostephanus Glaziovii Mez, in Engl. Bot. Jahrb. 30, Beibl. 27: 10. 1890. Euplassa obversiflora (Mez) Steyerm., comb. nov. Adenostephanus obversiflorus Mez, in Engl. Bot. Jahrb. 30, Beibl. 27: 9-10. 1890. Euplassa saxicola (Schultes) Steyerm., comb. nov. Roupala saxicola Schultes, Leafl. Bot. Mus. Harv. Univ. 13: no. 10: 300-301. 1949. The pinnately compound alternate leaves with opposite leaflets, and the flower structure definitely place this in the genus Euplassa. Euplassa venezuelana Steyermark, sp. nov. Arbor 9 m. alta; ramulis tenuiter adpresso-pubescentibus; petiolis cum rhachibus 17-19 cm. longis, adpresso-fulvo-pubescentibus; foliolis 2-4-jugis, oppositis, coriaceis, ovali-oblongis vel obovatis, basi obtusis, apice tenuiter vel profunde obcordatis vel emarginatis, integerrimis, supra nitidis glabris grosse reticulatis, subtus pal lid o- viridibus parce minute adpresso-pilosulis tenuiter reticulatis, pilis pallidis, 5.5-10 cm. longis, 3.5-6 cm. latis; petiolulis 9-10 mm. longis, adpresso-fulvo-pubescentibus; racemis terminalibus et axillaribus simplicibus, 15-25 cm. longis, 2-3 mm. crassis, rhachi dense adpresso-ferrugineo-tomentosis; pedicellis 1.5-3 mm. longis, dense adpresso-ferrugineo-tomentulosis; calyce subirregulari subclavatocylindrico curvato; sepalis 4 apice concavo staminiferis, 9-11 mm. longis, extus parce adpresso-fulvo-tomentulosis, intus glabris; a heris subsessilibus ovatis, 1.8-2 mm. longis; glandulis hypogynis connatis, marginibus paullo lobatis vel undulatis, 1.5 mm. altis, glabris, uno latere lobato profundiori; ovario parce tomentoso, 2.5 mm. longo, ad glandulam adnato; stylo erecto robusto glabro, 4-5 mm. longo; stigmate clavato compresso 2 mm. longo (Fig. 42, a-b-c). Type in herb. Chi. Nat. Hist. Mus., collected along Rio Karuai, northwest of Santa Teresita de Kavanaye'n, state of Bolivar, alt. 1220 m., November 30, 1944, Julian A. Steyermark 60824, "tree 30 feet tall; leaves coriaceous, deep green and shining above, pale green below; rachis and peduncle ferruginous-brown; corolla buds brownish or olive green without". This species is related to E. Glaziovii (Mez) Steyerm. and E. obversiflora (Mez) Steyerm. From the former it differs in having 4 pairs of leaflets deeply emarginate at apex, the lower leaf surface pilosulous instead of glabrous, and the relatively shorter pedicels in proportion to the length of the flowers. From the latter, E. venezuelana differs in the more densely ferruginous appressed tomentum
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o 2 CM XI E> RAR.Y OF THL UNIVERSIT
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FIELDIANA: BOTANY A Continuation of
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NUMBER 1 LIST OF ILLUSTRATIONS TEXT
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PAGE 67. Emmotum ptarianum 342 68.
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CONTRIBUTIONS TO THE FLORA OF VENEZ
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BOTANICAL EXPLORATION IN VENEZUELA
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