downloads/Killip 2.pdf - Passion Flowers

560 FIELD MUSEUM OF NATURAL HISTORY BOTANY, VOL. XIX
BRAZIL: Amazonas: Rio Putumayo, Jobert in
1877-78 (P).
This rare species is best distinguished from its near relatives by
the very fleshy flowers, which have a rather wide tube.
351. Passiflora Holtii Killip, sp. nov.
Frutex subscandens, cirrhis tenuibus, ubique ovario excepto
glaberrimus; folia ovata vel ovato-lanceolata, caudato-acuminata,
valde reticulata, subcoriacea; inflorescentia pseudoracemosa; calycis
tubus anguste cylindricus, sepalis petalisque anguste oblongis,
obtusis; coronae filamenta biseriata, exteriora filiformia, interiora
capillacea, operculum usque ad basin filamentosum, filamentis
erectis; ovarium anguste ovoideum, rufo-sericeum.
Subscandent shrub, the tendrils slender but well developed; plant
glabrous throughout, except the ovary; stipules soon deciduous;
petioles 3 to 5 mm. long, biglandular at apex, the glands scarlike,
inconspicuous; leaves ovate or ovate-lanceolate, 12 to 15 cm. long,
6 to 8 cm. wide, caudate-acuminate (tip about 1.5 cm. long), rounded,
occasionally suboblique, at base, penninerved (principal lateral
nerves 6 or 7 to a side), conspicuously reticulate-veined, entire, subcoriaceous,
lustrous; inflorescence pseudoracemose, the rachis 15 to 30
cm. long, floriferous only above middle, bearing a few abortive
leaves, the pedicels 1 to 1.5 mm. long, thick, erect; calyx tube narrowly
cylindric, 3.5 cm. long, 4 to 6 mm. in diameter, ventricose at
base; sepals narrowly oblong, about 2 cm. long and 5 mm. wide,
obtuse; petals similar and equal to the sepals; corona filaments in 2
series, the outer filiform, about 2.5 mm. long, the inner capillary,
about 1 mm. long; operculum borne just below middle of tube, erect,
filamentose to base, the filaments 4 to 5 mm. long; gynophore slender,
5 cm. long; ovary narrowly ovoid, rufo-sericeous.
Type in the United States National Herbarium, No. 1,472,096,
collected at Cucuhy, Rio Negro, State of Amazonas, Brazil, altitude
about 117 meters, February 5, 1930, by E. G. Holt and W. Gehriger
(No. 384).
The National Geographic Society's expedition to the little
explored region where the frontiers of Brazil, Venezuela, and Colombia
meet brought back an exceptionally interesting series of Passifloraceae.
Although this is the single novelty in the collection, the
other specimens all represent species that are very little known.
Passiflora Holtii is related to P. spicata and P. pyrrhantha.
From the former, which it resembles in having very short petioles
and long-tipped leaves, it differs in the outer corona filaments being