Lectotypifications in the Genus Petrea (Verbenaceae) Ricardo .1I. Rueda Departainento de Biologia, Universidad Nacional Aut6noma de Nicaragua, Le6n, Nicaragua;present address: Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166, U.S.A.ABSTRACT. Twenty-one specific epithets in PIeltrcneed lectotypification. Of these, 17 holotypes werenot originally designated, two types were destroyedduring World War II, and two are missing. As a result of an ongoing study toward a mono-graph of the genus Petrea, a number of specificepithets have been found to need lectotypification.Lectotypifications were not made in Moldenke's(1938) monograph of the genus. During the courseof this study, most of the types of Petrea were seenvia loans or herbarium visits. The objective of thispaper is to lectotypify the species for which a ho-lotype was not designated or whose holotype hasbeen destroyed or is missing. In general, the spec-imens designated here as lectotypes have been se-lected as the most representative material availableamong the eligible collections, and are not neces-sarily the collections deposited at the author's in-stitution (see Phillips et al., 1992. for details).Petrea algentryi Moldenke, Phytologia 54: 67. 1983. TYPE: Colombia, Gentry et al. 37075) (lectotype, selected here, MO; isolectotype. MO). This type was collected along the Rio Tagaclii,12 km west of Rio Atrato, Choco, Colombia, on 19June 1982. According to Moldenke (1983). theholotype was deposited at the U niversity of Texas(TEX), but this type was not found there. In addition,this holotype was never part of Moldenke's herbar-ium (G. Nesom, pers. comm.). Two specimens ofthe same collection are at the Missouri BotanicalGarden (MO), marked with the word "type." Theaforementioned seems to indicate that the holotypeis missing. Therefore, one of the sheets at MO isdesignated as lectotype.Petrea arborea Kunth, Nov. Gen. Sp. 2: 282-283. 1818. TYPE: Venezuela, Ilumboldt & Honpland s.n. (lectotype, selected here, P). This type was collected in Aragua, Venezuela,near the town of Cura, in February 1800. A holotypefor this species was not designated. No specimen forthis collection exists in the Humboldt-Bonpland orW illdenow herbaria, seen on microfiche. A specimenwas found at P and is designated as lectotype.Petrea aspera Turczaninow, Bull. Soc. Imp. Nat. Mosc. 36: 211. 1863. TYPE: Venezuela, FIunk & Schlirn 507 (lectotype, selected here, BR; isolectotypes, BM, ((2), P, W; photo of iso-lectotype, F, MO, NY(2), TEX, I , W). This type was collected in Carabobo near SanEstevan, Venezuela, at 300 m, in April 1815. Aholotype for this species was not designated, andthere are numerous extant syntypes. The best spec-imen of the original collection is designated as lec-totype.Petrea atrocoerulea Moldenke, Feddes Repert. 13: 195. 1938. TYPE: Colombia, Kalbre',er /631 (lectotype, selected here, K; fragment of isolectotype, NY; photo of isolectotype, NY, TEX). This type was collected along tie Rio Porce,Antioquia, Colombia, on 7 May 1880. Moldenke(1938) designated as the holotype for this speciesa specimen deposited in B. However, t'. l. iepko, thecurator of B, informed me that this type was de-stroyed in World War II. Because of this, the isotypeat K is designated as lectotype.Petrea blanchetiana Schauer in D)C., Prod. 11: 617 618. 1847. TYPE: Brazil. llartius 1029 (lectotype, selected here, BR; isolectotypes, BM, G(2), GCl, I., LE, M(2), , MO, NY, S photo of isolectotype, NY). This type was collected in Bahia, with no collec-tion date given. A holotype for this species was notdesignated. The species was based on three differentcollections, Martius 1029, Hlanchet 91, and Salz-mann 433. Among these, Martius's specimen hasmore complete label data than the other collectionsand is duplicated in more herbaria; it agrees withthe protologue, and most of the specimens are ingood condition. The best specimen of the Martinscollection, deposited at BR, is designated as lecto-type.NOvoN 3: 179-181. 1993.
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