Paphiopedilum hookerae (Reichenbach fil. ex Hooker fil.) Stein

• Described: Reichenbach fil. ex Hooker fil. in Curtis's Botanical Magazine, 89, tab. 5362 (1863)
• Transferred: Stein in Stein's Orchideenbuch, 470 (1892)
• Etymology: Named for Lady Hooker, the wife of Sir William Jackson Hooker.
• Varieties & Forms:
  Paphiopedilum hookerae var. volonteanum (Sander in Gardener's Chronicle, 3rd series, 8: 7 (1890, List of awards)) Braem in Paphiopedilum: 147 (1988)
  Paphiopedilum hookerae var. volonteanum fma. sandowii (Braem in Orchidees. Culture et Protection, 36: 35-38 (1998)) Gruss in Caesiana 12: 63 (1999) - albino form
• Synonyms: none
• Chromosome Count -

  2n =	metacentrics	telocentrics	n.f.
  28	28	0	56

Plant Habit

• Leaves: 5-6, 7-23 cm long, 3-5 cm wide, mottled dark and light green
• Inflorescence: 1-flowered, up to 50 cm long, purple, white-pubescent
• Bloom: 8-10 cm wide

Habitat Data

• Distribution -
  
• Elevation: 300-800 m
• Peak Flowering in the Wild: March-April
• Ecology: between tree roots or just below the summits of limestone or sandstone cliffs
• Mean Temperature Range: 22-24°C
• Light: light-moderate shade
• Medium: mosses, leaf litter
• Water (D-drier, M-moderate, W-wetter) -

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Sources:

• Braem, Guido J., and Guy Chiron. Paphiopedilum. Saint-Genis Laval, France: Tropicalia, 2003.
• Cribb, Phillip J. The Genus Paphiopedilum. Kota Kinabalu, Malaysia: Natural History Publications in association with Royal Botanic Gardens, Kew, 1998.
• Gruss, O. "Albino Forms of the Slipper Orchids." Orchid Digest 69, no. 4 (Oct/Dec 2005): 204-29.
• Hooker, W.J. "Cypripedium hookerae. Lady Hooker's Cypripedium." Curtis's Botanical Magazine 89 (1863): Tab. 5362. <view article>
• Karasawa, K. "Karyomorphological Studies in Paphiopedilum, Orchidaceae." Bulletin of the Hiroshima Botanical Garden 2 (Mar 1979): 1979.

Primary Hybrids

Paph. hookerae x	Hybrid
armeniacum	Lady Trouble
delenatii	Margherita Burnett
micranthum	How Can You
bellatulum	Youngiae
concolor	Hoocolor
godefroyae	Pharos
niveum	Margaret Whitmire
charlesworthii	Hookerbaecrook
druryi	Druryo-Hookerae
fairrieanum	Fairy Realm
hirsutissimum	Lawless Jungle Journey
insigne	Echo
spicerianum	Eurydice
villosum	Schusterianum
acmodontum	Shirley Amundson
appletonianum	Apres Midi
barbatum	Marmorophyllum
callosum	Fortuna
ciliolare	Rimbertianum
curtisii	Quies
dayanum	Shipwayae
hennisianum	Street Smart
lawrenceanum	Enfieldense
mastersianum	Xanthophyllum
purpuratum	Gemmiferum
sukhakulii	Memoria Gerald Lawless
superbiens	Pageanum
urbanianum	Erika Potent
venustum	Atys
violascens	Neeri-Viola
haynaldianum	Haynaldiano-hookerae(1900), Aeneas(1900)
lowii	Burtonii
philippinense	Hamana Hooknes
rothschildianum	Jupiter
stonei	Melanthus

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Page Created By: Stephen Manza
Last Updated: 7-23-06
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