| ┌1A. | RheophyteRheophyte: An aquatic plant that lives in fast moving water currents.
s .. 📌Schismatoglottis ahmadii
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| ├1B. | Terrestrial mesophytes or lithophyteLithophyte: A plant that grows on bare rock or stone.
s .. 2
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| │ | ┌2A. | PistilPistil: The female reproductive part of a flower.
late flower zone not adnateAdnate: Joined by having grown together.
to spatheSpathe: A large sheathing bract enclosing the flower cluster.
; lithophyteLithophyte: A plant that grows on bare rock or stone.
s of Karst limestone. Mulu N.P .. 📌Schismatoglottis muluensis
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| │ | ├2B. | PistilPistil: The female reproductive part of a flower.
late flower zone variously adnateAdnate: Joined by having grown together.
to spatheSpathe: A large sheathing bract enclosing the flower cluster.
; Terrestrial mesophytes, if associated with Karst limestone then never occurring epilithically .. 3
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| │ | │ | ┌3A. | Leaf blades glossy brilliant green, rubbery and sub-succulent; spatheSpathe: A large sheathing bract enclosing the flower cluster.
limb remaining green throughout anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive.
; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe.
appendixAppendix: Sterile appendage at the end of a spadix.
hemispherical, staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s closely appressed, polygonal, smooth medium yellow, contrasting with white staminate flowers. NW Sarawak; granites or sandstones .. 📌Schismatoglottis viridissima
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| │ | │ | ├3B. | Leaf blades semi-glossy green, softly leathery; spatheSpathe: A large sheathing bract enclosing the flower cluster.
limb becoming creamy yellow or white and contrasting with green lower spatheSpathe: A large sheathing bract enclosing the flower cluster.
during anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive.
; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe.
appendixAppendix: Sterile appendage at the end of a spadix.
conical to bullet-shaped, staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s somewhat lax, columnar, slightly round-topped, white to pale yellow, never contrasting with staminate flower colour; not granite associated .. 4
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| │ | │ | │ | ┌4A. | Leaf blades cordateCordate: 
to broadly sagittateSagittate: 
; limestone-associated forest, Padawan (NW Sarawak) Schismatoglottis baangongensis
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| │ | │ | │ | ├4B. | Leaf blades narrowly hasto-sagittateSagittate:
to oblongOblong: 
-lanceolateLanceolate: 
to narrowly obovateOvate: 
; not limestone-associated, N and C Sarawak .. 5
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| │ | │ | │ | │ | ┌5A. | Leaf blade oblongOblong:
-lanceolateLanceolate:
to narrowly obovateOvate:
, the base acute to rounded, not at all cordateCordate:
; pistilPistil: The female reproductive part of a flower.
late flower zone to adnateAdnate: Joined by having grown together.
to the spatheSpathe: A large sheathing bract enclosing the flower cluster.
for ca 1 cm, appendixAppendix: Sterile appendage at the end of a spadix.
bullet-shaped; Bintulu & Sarkei .. 📌Schismatoglottis clarae
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| │ | │ | │ | │ | └5B. | Leaves narrowly hasto-sagittateSagittate:
; pistilPistil: The female reproductive part of a flower.
late flower zone not adnateAdnate: Joined by having grown together.
to spatheSpathe: A large sheathing bract enclosing the flower cluster.
, appendixAppendix: Sterile appendage at the end of a spadix.
conoid; Kapit .. 📌Schismatoglottis ardenii
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