Phragmipedium longifolium f. gracile (Veitch ex Rolfe)Gruss
in Caesiana 16: 40, 2001
Cypripedium longifolium var. gracile Veitch ex Rolfe in Gardener's Chronicle 728, 1890.
Cypripedium longifolium var. gracile hort. in Veitch, Man. Orch. Pl. 4: 65, 1889.
Phragmipedium longifolium var. gracile (Veitch ex Rolfe)Pfitzer in Engler, Das Pflanzenreich IV(50): 49, 1903.
Phragmipedium longifolium subsp. gracile J.T. Atwood & Dressler in sched. (Sel, Atwood 77177).
Selenipedium gracile Debois in Monogr. Cyp.: 136, 1888 - nomen nudem.
Plant : This variety is smaller in all it's parts when compared with the typical Phrag. longifolium.
Leaves : The leaves are about 12 cm long.
Inflorescence : The inflorescence is ca. 14 cm high.
Flowering season :
Chromosomes : 2n = 21 (Karasawa, 1980).
History : The variety was roughly described in the 18-hundreds. The name was given to it by Veitch in ,,A Manual of Orchidaceous Plants" Vol. II: 65. Rolfe mentioned it in ,,The Gardeners' Chronicle" in 1890. He referred to Veitch's description and wrote: ,,There is a variety of C. longifolium named gracile, more slender in all its parts, and of a paler colour, and bracts more compressed".
A far better and more precise description was given by Kohji Karasawa in 1987 in his Orchideen Atlas 1: 214. The picture that accompanied this description clearly showed it's relationship with Phrag. longifolium.
Comments : Very closely related to Phrag. longifolium is Phrag. hartwegii. Of this later species there is also a small growing variety known to science; Phrag. hartwegii var. baderi.