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Amaldoa 2004 21-28: 11(2): A new Bomarea northern Peru unusual species in (Alstroemeriaceae) ANTON HOFREITER Department Ludwig-Maximilians- Universitdt, Biologie Bereich Biodiversitatsforschung, I, Abteilung Systematische Botanik, D-80638 Miinchen, Menzingerstrafie 67, GERMANY, E-mail: [email protected] E RODRIGUEZ RODRIGUEZ ERIC Herbarium (HUT), Universidad Truxillense Nacional de San Martin 392, Trujillo, Jr. PERU, E-mail: Trujillo, efrr@ chanchan. edu.pe unitru. Abstract A new Bomarea Bomarea species of subgenus (Alstroemeriaceae), from s.str. Northern Peruvian Andean region (Amazonas, La Libertad and San Martin deparments) & The described and illustrated: B. alstroemeroides Hofreiter E. Rodr. typical growth is The new form and variability, habitat preferences and distribution are discussed. species its recognised because of wide-open, zygomorphic The easily large clearly flowers. its is some The shape of the flower appears similar Alstroemeria species. species endemic to is Amotape-Huancabamba-region. The new compared specie next to the is to its relatives. Key words: Bomarea, new Andes, Amotape- species, Peru, distribution, Huancabamba-region. Resumen Se describe e una nueva especie de Bomarea subgenero Bomarea ilustra s.str. (Alstroemeriaceae) procedente de region Andina del Norte del Peru (departamentos la & Amazonas, La San de Libertad y Martin): B. alstroemeroides Hofreiter E. Rodr. Se como forma discute la tipica del crecimiento y su variabilidad, asf las preferencias del La nueva habitat y distribucion. especie se reconoce facilmente por sus flores grandes, muy La abiertas y claramente zigomorfas. forma de la flor es similar a ciertas especies I 21 deAlstroemeria. El nuevo taxon es endemico a region de Amotape-Huancabamba. la Se compara con mas su relacion especies las afines. Palabras clave: Bomarea, nueva Andes, especie, Peru, distribucion, region Amotape-Huancabamba. Introduction The Bomarea Peruvian species (Alstroemeriaceae) were revised for the time last by The Killip (1936). genus divided into 4 subgenera: Baccata Bomarea is species), (3 & Sphaerine and Wichuraea s.str. (ca.70), (12) {\^) (Hofreiter Tillich 2002). In Peru no species of Baccata For occurs. the differences of the subgenera see the key. The Bomarea subgenus s.str. has centre of distribution growing twining on the edges of fog it Sphaerine shadow forests, erect in the of the fog forest and Wichuraea open erect in and The habitats in the jalca puna. subgenus Bo/warea subdivided 5 informal s.str. is in & groups by Harling Neuendorf The new The (2003). species in the Multiflora group. fits colour and the shape of the tepals are very similar to the typical members of the group B.formosissima orB. like multiflora, but the shape of the flowers very The is different. wide-open flowers are unique within the whole group and appear Alstroemeria like The flowers. other species of this group have all funnel shaped flowers and so far only hummingbirds have been observed The new at their flowers. species seems be adapted to At to insect pollination. least insects can easily reach the nectar. Key new to the species: ovary semi-inferior; plants twining or flowers pendulous, erect; actinomorphic; 1 tepals retained at the ripe fruit; fruit dehiscent; Ecuador to Argentina Wichuraea V ovary inferior 2 2 fruit dehiscent, leathery; plants mostly twining; flowers pendulous and actinomorphic or horizontally orientated and zygomorphic; Bomarea mostly deciduous tepals s.str.) •; 3 2' fruit indehiscent, fleshy; plants mostly erect; flowers erect and actinomorphic or horizontally orientated and zygomorphic; Colombia Bolivia Sphaerine to 3 inflorescence a thyrse Goniocaulon group, Pardina group, Salsilla group, Edulis group and various other species y inflorescence an umbel; Mexico American to Bolivia, Cordillera 4 flowers without a green 5 tip rosea and various other species flowers with a green B. tip group of Multiflora shaped other species the flowers funnel all ahtroemeroides wide-open B. flowers nueva Clave para especie: la o pendulas, ovario semi-infero; plantas volubles (enredadera) erectas; flores Ecuador actinomorfas; tepalos persistentes en el fruto maduro; fruto dehiscente; Wichuraea Argentina hasta 2 ovario infero mayormente volubles (enredadera); flores dehiscente, coriaceo; plantas fruto mayor- pendulas y actinomorfas u horizontalmente orientadas y zigomorfas; tepalos (Bomarea mente deciduos 3 sir.) s. mayormente indehiscente, carnoso; plantas erectas; flores erectas fruto y Colombia actinomorfas u horizontalmente orientadas y zigomorfas; a Bolivia Sphaerine un inflorescencia tirso grupo Goniocaulon, grupo Pardina, grupo grupo Edulis y varias otras espe- Salsilla, una umbela; Mexico Americana 4 a Bolivia, cordillera inflorescencia apice verde 5 flores sin con apice verde B. rosea varias otras especies y flores grupo infundibuliformes todas las otras especies del Multiflora flores muy ahtroemeroides B. abiertas flores & no Bomarea ahtroemeroides Hofreiter E. Rodr. spec, v. Amazonas, Chachapoyas: TYPE: Peru, Dept. Prov. Dist. Leymebamba, near Laguna de Los Condores, primary the 2550-2600 Rodriguez 2167a forest, m, 31 .01 .1999, Eric et al. HUT!). (holotype: A; 2 C; distribution and habitat Fig. IB, C. Fig. 1 Inter speciebus affinibus insignis caule spiraliter scandete, glabra, foliis linearibus at anguste ovatis longe attenuatis, glabris, umbella +- patule, floribus zygomorphis, segmentis perianthii rotatis, aequalibus, sepalis oblongis, rubris, petalis spathulato-unguiculatis, mbris rubra punctatis. Fructus turbinati, pilosi. m cm Plant twining, up to 4 long, stem robust, up to 0.5 in diameter, not recurved at apex, pubescent with increasing density towards the top, or glabrous. Leaves linear or - - linear-lanceolate, 2 8 x 0.2 0.8 cm. Both leaf surfaces glabrous. Inflorescence an 2-4 umbel, pedicels cm, pubescent. Subtending leaves of the lower-most flowers - - bracteose, 0.5 x 0. 0.2 cm, subsequent bracts smaller. Flowers zygomorphic, 1 1 -4 cm wide horizontally oriented, open, ca 3 in diameter, inner tepals equalling outer cm 2-3 on ones, long, outer tepals oblong, outer surface red, paler red inner surface. Inner tepals subdivided in blade and claw, orange with a red stroke at outer side and with many Ovary dark spots. pubescent, fruit turbinate and seeds globose. Additional specimen examined: PERU. Amazonas: Chachapoyas, Dept. Prov. Balsas road to Leymebamba, Weigend 3559 m, 19.10.2000, 2000/ et al. 863 (HUT, MSB); Prov. Chachapoyas, Balsas road to Leymebamba, & 3300 m, 5.01.1979, Dillon Turner 1747 (F). Leymebamba 2900 Lopez Entre Balsas, m, 01.06.1963, y et 4415 al. (HUT). Dept. La Libertad, Prov. Bolivar, east of Bolivar, 3400 San ca. m, Hofreiter s.n. (MSB). Dept. Martin: Prov. Tambo Huallaga, Dist. Saposoa, Entre El y Jaica del Rayo, camino a Leymebamba, 2800-3200 m, 5.09.2000, 1 < 2485 (HAO, HUSA) et al. known Note: B. alstroemeroides so far only from a small area and even there is it seems be most to rare. In contrast to other species of the Multiflora group do not occur it The maybe in large population, but dispersed. next relatives are B. multiflora from Ecuador and Colombia and B.formosissima from southern Peru and northern Bolivia. The shape new of the flower can distinguish the species, but the shape of the tepals and the colour of the flowers are very similar B.formosissima. 2 A-E) to (Fig. and The new Distribution ecology: grows Amotape-Huancabamba- species in the from Abra region the de Calla Calla to the mountains east of Bolivar on the windward m m sides in small shrubs and fog forests at altitudes between 2500 and 3600 (Fig. IB, new This who own C). taxa is associate with other species define their phytogeographic Nasa zone Ribes and Bomarea) (e.g. spp., Passiflora spp., spp. other species of and humid prefers black with abundant organic soil matter. m Etimology: The B. alstroemeroides refers to the wide, open clearly zygomorphic Alstroemeria-likQ flowers Acknowledgements We AAU, BM, CUZ, thank the directors and curators of the herbaria B, E, F, G, USM We GH, HAO, HBG, HUT, K, LP, LZ, M, MA, MO, NY, U, UC, US, and W. thank Kobele computer H. Forther for his help with taxonomic problems, C. for assistance at We problems, Hock for taking photos of herbarium specimens; are grateful to H. F.J. M. A. Cano, Careras, N. Salinas, M. Torres and L. Montes for diverse help Beltran, F. I. and assistance in Peru, and to S. Beck in Bolivia. The first author is indebted to his who and Susanna Tausendfreund, former employer, constant support his parents for to making work. accepted very flexible working times, possible this research Literature cited & M. Harling, G. Neuendorf, 2003. Alstroemeriaceae. -Flora of Ecuador 71 3-108. : & A The and Hofreiter, Tillich, H-J. 2002. delimitation, ecology, distribution infrageneric - oiBomarea -Feddes subdivision Mirbel (Alstroemeriaceae). Repert. 113 (7 8): 528-544. - Bomarea - E. 1936. Mirb. Macbride, Flora of Peru, Part Killip, P. In: F. (ed.): J. I. Mus. 633-665. Field Nat. Hist.,Bot. Ser. 13: