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Phragmipedium longifolium f. hartwegii (Reichenbach fil.) Braem
in Richardiana, 16: 72-84 [81] (2015).
Basionym :
Cypripedium hartwegii Reichenbach fil. in Botanische Zeitung, 10(41): 714 (1852).
Synonyms :
Cypripedium macranthum Hartweg in scrips., Trans. Hort. Soc. L., 2(3): 155 (1848).
Selenipedium hartwegii (Reichenbach fil.) Reichenbach fil. in Bonplandia, 2: 116 (1854).
Selenipedium longifolium var. coloratum Reichenbach fil. in The Gardeners' Chronicle, 1st series, 33: 289 (1873).
Cypripedium longifolium var. hartwegii (Reichenbach fil.) Kent in H.J. Veitch, A Manual of Orchidaceous Plants, 4: 65 (1889).
Paphiopedilum longifolium var. hartwegii (Reichenbach fil.) Stein in Stein's Orchideenbuch: 475 (1892).
Paphiopedilum hartwegii (Reichenbach fil.) Pfitzer in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie, 19: 41 (1894).
Paphiopedium longifolium var. hartwegii (Reichenbach f.) de Kerchove de Denterghem in Le Livre des Orchidées: 455 (1894).
Selenipedium hartwegianum (Reichenbach fil.) Desbois in Cypripedium, Selenipedium & Uropedium: 136 (1898), nomen nudum.
Phragmopedilum hartwegii (Reichenbach fil.) Pfitzer in A. Engler, Das Pflanzenreich, IV. 50. Orchidaceae-Pleonandrae (Heft 12): 48 (1903).
Phragmipedium hartwegii (Reichenbach fil.) L.O. Williams in Annals of the Missouri Botanical Garden, 26: 280 (1939).
Type(s) :
Etymology : H.G. Reichenbach named this species after Karl Theodor Hartweg (1812-1871) who discovered this species in Ecuador.
Plant :
Leaves : The leaves are more or less tongue shaped and do not have a yellow edge. The length of the leaves is about 80 cm and the width is approximately 4 cm.
Inflorescence : The inflorescence is up to 90 cm long.
Flower : The dorsal sepal is approximately 7.5 cm long and 2.2 cm wide. The synsepalum is approximately 6.5 cm long and 3.5 cm wide. The petals are approximately 9.5 cm long and 1 cm wide. The labellum or pouch is 5.8 cm long. The staminode is approximately 0.8 cm high and approximately 1.5 cm wide. It is diagonally elliptic in shape with at the upper edge short prickly hairs. The ovary is about 7.2 cm long.
Habitat : It grows in quite inaccessible, wet and swampy places.
Distribution : Ecuador.
Flowering Season :
Chromosomes : 2n = 20 (Karasawa, 1980).
History : Karl Theodor Hartweg (1812-1871) was plantcollector for the Royal Horticultural Society and later the head-gardener in Karlsruhe, Germany. Round the year 1842 he discovered Phrag. longifolium f. hartwegii on the east-slopes of the Andes of Quito near Nanegal in Ecuador, at an altitude of about 1300 m.
Comments : Dodson (1966) observed that the pollination of Phrag. longifolium f. hartwegii is done by flies of the genus [TtSylphus and small bees of various genera.