Phragmipedium lindleyanum var. sargentianum (Rolfe)Gruss
in Orchid Digest 67(4): 228, 2003.

Basionym :
   Selenipedium sargentianum Rolfe in The Orchid Review 1: 239, 1893.

Type :

Synonyms :
   Cypripedium sargentianum (Rolfe)Kraenzl. in Orch. Gen. et Spec. 1: 38, 1901.
   Paphiopedilum sargentianum (Rolfe)Hallier in Ann. Jard. Bot. Buitenzorg 14: 46, 1897.
   Phragmipedium sargentianum (Rolfe)Rolfe in The Orchid Review 8: 337, fig. 47, 1900.
   Phragmopedilum sargentianum (Rolfe)Pfitzer in Engler, Botanische Jahrbücher 25: 527, 1898.

Varieties :

Etymology : This species is named after Professor C.S. Sargent, who was the Director of the Harvard University Arboretum and publisher of the magazine Garden and Florist.

Description
Plant : A terrestrial growing plant with short, but strong roots.
Leaves : This species has long-linear leaves which can grow up to 30-60 cm long and about 3-6 cm wide.
Inflorescence : This can grow up to 1,5 m in height.
Flower : The opening of the lip is roundish-square. The shape of the staminode is almost square.

Habitat : The plants can be found at height's of 800 to 1500 meter on the east facing sloops in small, boggy, open places in the forests or on the with grass overgrown sandbanks along small streams. They grow on bright to semi-shaded places, protected by the overhanging trees. The average temperature is about 22 °C, were the temperatures during the rainy winters are as low as 10-12 °C and in the dry summers as high as 18-28 °C. The relative humidity of the air is 70%, and there is a strong build-up of dew during the night. A constant light cool breeze creates a relative strong movement of the air. The plants grow with their strong roots in the acidic peat like soil in between the grasses.

Distribution : Brazil, in the mountainous inland of the State of Pernambuco, on steep slopes in the mountains west of Sao Caetano and in the Serra do Uruba. More recently Roberto Takase and Marcos Campacci found Phrag. sargentianum growing on a granite slope in the State of Alagoas.

Flowering season : October until March. A plant can be in flower for as long as three months.

Chromosomes : 2n = 22 (Karasawa, 1980).

History : This species was imported into England in 1892 by the firm Messrs. Sander's Ltd. in St. Albans. There it bloomed for the first time in that same year. In 1893 Rolfe described the plant in Orchid Review as Selenipedium sargentianum. In 1896 he moved it into the present genus Phragmipedium.

Comments :

Hybrids :
   Phrag. lindleyanum var. sargentianum
      x Phrag. besseae = Phrag. Memoria Dick Clements
      x Phrag. boissierianum = Phrag. George Shearing
      x Phrag. caudatum = Phrag. Demetria
      x Phrag. caudatum var. wallisii = Phrag. Carrefour Selous
      x Phrag. caudatum var. warscewiczianum = Phrag. Red Lightning
      x Phrag. dalessandroi = Phrag. Grosnez
      x Phrag. hirtzii = Phrag. Fantasy Dream Chaser
      x Phrag. klotzscheanum = Phrag. Moche
      x Phrag. lindenii = Phrag. Louis Gaucher
      x Phrag. longifolium = Phrag. Sorcerer's Apprentice
      x Phrag. pearcei = Phrag. Patti MacHale
      x Phrag. pearcei var. ecuadorense = Phrag. La Moye
      x Phrag. richteri = Phrag. Alice
      x Phrag. schlimii = Phrag. Coral Jewel
      x Phrag. vittatum = Phrag. Memoria Adele Bishop
      x Phrag. Calurum = Phrag. Brainteaser
      x Phrag. Cardinale = Phrag. Frank Booth
      x Phrag. Don Wimber = Phrag. Simon Field
      x Phrag. Ecua-Bess = Phrag. Radiant Sargent
      x Phrag. Eric Young = Phrag. Sergeant Eric
      x Phrag. Grande = Phrag. Umbriel
      x Phrag. Hanne Popow = Phrag. Beauport
      x Phrag. Jason Fischer = Phrag. Sergeant Jason
      x Phrag. Memoria Dick Clements = Phrag. Jerry Dean Fischer
      x Phrag. Nitidissimum = Phrag. Dragon's Blood
      x Phrag. Praying Mantis = Phrag. Praying Sargent
      x Phrag. Sedenii = Phrag. Mont Fellard
      x Phrag. Silver Eagle = Phrag. Flamingo
      x Phrag. Sunset Glow = Phrag. Memoria Dieudonné Faust
      x Phrag. Urgandiae = Phrag. Licorice

      Unregistered hybrids :
      x Phrag. caricinum = Phrag. n.r.