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526 FIELD MUSEUM OF NATURAL HISTORY BOTANY, VOL. XIX tube cylindric-campanulate, 7 to 10 mm. long, 4 to 5 mm. wide; sepals linear-oblong, 2 to 3 cm. long, up to 1.2 cm. wide, obtuse; petals similar and subequal to the sepals; corona filaments yellow, in 3 series, the outermost 1 to 1.5 cm. long, laterally compressed, radiate, subfalcate, dilated at or just above middle, the apex slender, filiform, the inner filaments in 2 series, subequal, narrowly linear, 1 to 1.5 mm. long; operculum borne about 5 mm. below corona, erect, i.5 mm. high, fimbriate nearly to base; ovary narrowly ovoid, sericeo-tomentose; fruit ovoid, 3.5 to 4 cm. long, 2 to 2.5 cm. wide, yellowish seeds ovate, about 6 mm. long and 3 mm. wide, punctate. TYPE LOCALITY: Near La Valza, Quindio Mountains, Colombia. ILLUSTRATIONS: Humb. & Bonpl. PI. Aequinoct. 1: Mag. 96: pi. 5864; Mutis, Icon, PL Ined. 26: pi. 1. pi 22; Bot. DISTRIBUTION: Known apparently from widely separated localities in Colombia, between altitudes of 1,000 and 1,700 meters, but nowhere common. COLOMBIA: Mutis 791 (Ma, N), 793 (Ma, N), 939 (Ma, N). Magdalena: Santa Marta Mountains, H. H. Smith 1882 (A, B, BM, Brux, CM, G, Gen, K, Ma, N, P, Ph, S, Ut, Y); Schultze 762 (B). Boyaca: Mt. Chapon, Lawrance 30 (Gen, N, Y). Cundinamarca: El Salto, Triana 2957 (BM, K, P). Tolima: La Valza, Los Volcancitos, Quindio Trail, Humboldt & Bonpland (B, type, BW). Rio Toche", Quindio Trail, Goudot in 1844 (K, P). La Palmilla, Triana 2938 (BM, HNC, P). Juza, Lehmann 2190 (Bo). Paramo Quindio, Karsten (B, V). Huila: Neiva, Rusby & Pennell 9^2 (N, Y). El Pital, Lehmann 8665 (K, Y). Nariiio: Altaquer, Andre 3352 (K). This was one of the earliest of the arboreal passionflowers to be described. In the Flora Brasiliensis Masters referred to it specimens from Venezuela, Colombia, Ecuador, and Peru. The Venezuelan material was later segregated as a separate species P. Lindeniana; the Ecuadorean specimen and the Peruvian one, which probably came from Ecuador in reality, represent P. macrophylla. The specimens which I have cited as P. arborea show considerable variation in the size and shape of the leaves and in the width of the sepals and petals, and I am inclined to believe that more than a single species is represented, especially in view of the widely separated localities at which this material was collected. However, as the whole section Euastrophea is still in a state of much confusion and can be satisfactorily dealt with only by assembling all available material at one place for careful comparison, I prefer not to divide P. arborea
AMERICAN PASSIFLORACEAE 527 at present. All the flowering specimens cited above have a cylindriccampanulate calyx tube, enlarged at the throat, not truly cylindric as in P. macrophylla and P. gigantifolia, or campanulate as in the other species of Euastrophea. 314. Passiflora frutescens Ruiz & Pavon, sp. nov. Frutex vel arbor, ramulis subteretibus, puberulis; folia maxima, ovata, oblongo-ovata vel oblongo-obovata, apice obtusa et emarginata, basi cordulata, subcoriacea, supra glabra, subtus glaucescentia et puberula; pedunculi solitarii, 1-furcati; flores albidi, rubro-maculati; calycis tubus infundibularis; sepala lineari-oblonga, obtusa; petala sepalis subaequalia; coronae filamenta extima subdolabriformia. Shrub or tree, the branchlets subterete, finely puberulous, drying dark reddish brown; stipules soon deciduous; petioles 2.5 to 3.5 cm. long, stout, puberulous; leaves ovate, oblong-ovate, or oblongobovate, 20 to 25 cm. long, 12 to 14 cm. wide, obtuse and emarginate at apex, cordulate at base, penninerved, the principal lateral nerves about 2 to a side, the midnerve bearing 2 scarlike glands at base; peduncles solitary, once-furcate, the united part 4 to 4.5 cm. long, the branches 3.5 to 4 cm. long; calyx tube funnel-shaped, about 1 cm. long, enlarged to 9 mm. at throat, glabrous; flowers white, densely red-spotted; sepals linear-oblong, 3 to 3.5 cm. long, 8 to 10 mm. wide, obtuse, ecorniculate; petals subequal to the sepals, slightly narrower, obtuse; outer corona filaments subdolabriform, about 1.5 cm. long, enlarged just above middle to a width of 3 mm., bearing at the point of greatest width a knoblike projection. Type in the Ruiz and Pavon Herbarium at the Jardin Botanico, Madrid, collected at Chinchao, Department of Huanuco, Peru, in 1795 by Ruiz and Pavon (No. 247, Fl. Peruv. Chil. ined.). Also at BM and Bo. DISTRIBUTION: Known only from type locality, central Peru. In this wonderfully interesting, original Ruiz and Pavon Herbarium there are two specimens of large-leaved, arborescent passionflowers, which were assigned names by the collectors. Apparently one represents P. macrophylla, and the other is now being described. The present species is figured in one of the unpublished volumes of the Flora of Peru and Chile of these authors. 315. Passiflora pubera Planch. & Linden, Ann. Sci. Nat. V. Bot. 17: 185. 1873. Passiflora sphaerocarpa var. pilosula Mast. Journ. Linn. Soc. 20: 31. 1883.
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THE UNIVERSITY OF ILLINOIS
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THE AMERICAN SPECIES OF PASSIFLORAC
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PRINTED IN THE UNITED STATES OF AME
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UNIVERSITY OF ILLINOIS-URBANA
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