Key to the Species of the Schismatoglottis Multiflora Group


Based on Studies on Schismatoglottideae (Araceae) of Borneo LIV ( Wong & Boyce, Aroideana VOL 39 NO 2, 2016 29 )

Click on 📌 to highlight and compare characteristics.
Click on the line numbers to select characteristics.



1A. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. with a terminal sterile appendixAppendix: Sterile appendage at the end of a spadix. .. 2
2A. Leaf blades with upper surface conspicuously corrugated, bright glossy green .. 📌Schismatoglottis maelii
2B. Leaf blades with upper surface not corrugated, dull dark to matte olive green .. 3
3A. Ligular portion of petiolar sheath long-persistentPersistent: Remaining attached to the plant beyond the usual time of falling. .. 4
4A. Stem erect, leaf blades pendulous from the tip of the petiolePetiole: Leaf stem. , petiolePetiole: Leaf stem. 20-30 cm long, ligular portion of petiolar sheath to 13 cm long; leaf blade ellipticElliptic: to oblongOblong: ellipticElliptic: , ca. 30 cm long 13 cm wide. Vertical karst limestone cliffs. Mulu .. 📌Schismatoglottis monoplacenta
4B. Stem creeping, leaf blades erect from the tip of the petiolePetiole: Leaf stem. , petiolePetiole: Leaf stem. 8-12 cm, ligular portion of petiolar sheath ca. 5 cm long; leaf blade broadly oblanceolateLanceolate: to narrowly ellipticElliptic: , 12-23 cm long 3-7 cm wide. RheophyteRheophyte: An aquatic plant that lives in fast moving water currents. on clay-loam river banks. Batang Ai .. 📌Schismatoglottis persistens
3B. Ligular portion of petiolar sheath marcescentMarcescent: Withering but remaining attached to the stem. .. 5
5A. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb marcescentMarcescent: Withering but remaining attached to the stem. , clasping spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. . Sarawak [Bau]. Limestone .. 📌Schismatoglottis dulosa
5B. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb caducousCaducous: Easily detached and shed at an early stage. .. 6
6A. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb shedding in a single piece .. 7
7A. Terrestrial herbs with ascending stems; leaf blades more-or-less erect; inflorescences erect on a short pedunclePeduncle: Flower stem. (pedunclePeduncle: Flower stem. obscured by subtendSubtend: (of a bract) extend under (a flower) so as to support or enfold it. ing cataphyllCataphyll: A reduced, small leaf. Usually used to describe a modified leaf which lacks a blade and in appearance corresponds to a petiole sheath. s); lower spatheSpathe: A large sheathing bract enclosing the flower cluster. walls thick (ca. 3 mm), fleshy- spongy .. 📌Schismatoglottis jitiniae
7B. RheophyteRheophyte: An aquatic plant that lives in fast moving water currents. s or lithophyteLithophyte: A plant that grows on bare rock or stone. s with creeping, rooting stems; leaf blades pendulous, inflorescences arching to pendulous on a long pedunclePeduncle: Flower stem. ; lower spatheSpathe: A large sheathing bract enclosing the flower cluster. walls thin (ca. 1 mm), leathery .. 8
8A. Robust herb to 1.2 m tall; petiolePetiole: Leaf stem. ca. 1 m long; leaf blades to 44 cm long 24 cm wide; thecaeThecae: One of the lobes of an anther in which pollen is produced. each with a single pore. Shales. Brunei (Temburong) .. 📌Schismatoglottis cyria
8B. Slender herb to 30 cm tall; petiolePetiole: Leaf stem. ca. 13-26 cm long; leaf blades to 25 cm long 15 cm wide; thecaeThecae: One of the lobes of an anther in which pollen is produced. each with two pores. Sandstones. Sarawak (Kuching) .. 9
9A. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb white; infructescence erect .. 10
10A. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ca. 4.5 cm long. Sarawak (Bako & Santubong) .. 📌Schismatoglottis nicolsonii
10B. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ca. 8 cm long. Sarawak (Matang) .. .. 📌Schismatoglottis mayoana
9B. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb jade-green; infructescence pendulous. Sarawak (Sempadi) . Schismatoglottis iliata
6B. SpatheSpathe: A large sheathing bract enclosing the flower cluster. limb disarticulating into circumferential rings along its length, then collapsing. Sarawak [Sarikei]. Shales .. 📌Schismatoglottis clausula
1B. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. fertile to the tip .. 11
11A. Ligular portion of petiolar sheath long-persistentPersistent: Remaining attached to the plant beyond the usual time of falling. ; stems erect .. 12
12A. Connective deeply 1-grooved from theca to theca; spatheSpathe: A large sheathing bract enclosing the flower cluster. limb exterior copperyorange. C. Sarawak .. 📌Schismatoglottis erecta
12B. Connective slightly raised between the thecaeThecae: One of the lobes of an anther in which pollen is produced. , not grooved; spatheSpathe: A large sheathing bract enclosing the flower cluster. limb exterior green. Kalimantan Tengah .. 📌Schismatoglottis schottii
11B. Ligular portion of petiolar sheath marcescentMarcescent: Withering but remaining attached to the stem. ; stems creeping and rooting .. 13
13A. Leaf blades abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly producing bulbils & plantlets along the mid-rib .. 📌. Schismatoglottis bulbifera
13B. Leaf blades not producing bulbils .. 14
14A. RheophyteRheophyte: An aquatic plant that lives in fast moving water currents. s .. 15
15A. SpatheSpathe: A large sheathing bract enclosing the flower cluster. distinctly inflated at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. .. 16
16A. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ca. 4.5 cm long; spatheSpathe: A large sheathing bract enclosing the flower cluster. pink; leaves abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly very glossy. Sarawak [Rejang Valley]. Shales .. 📌Schismatoglottis roseospatha
16B. SpadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ca. 6-7 cm long; spatheSpathe: A large sheathing bract enclosing the flower cluster. white; leaves abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly slightly glossy. Sarawak, Sematan. Sandstones .. 📌Schismatoglottis hayana
15B. SpatheSpathe: A large sheathing bract enclosing the flower cluster. unrolling slightly at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. but not distinctly inflated; Sarawak [Matang & Bau]. Sandstones .. 📌Schismatoglottis multiflora
14B. Terrestrial or lithophytic; not associated with the flood zone of riers .. 17
17A. Leaf blades abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly not glaucousGlaucous: Covered with a whitish powder or waxy coating. , base obtuse to slightly decurrentDecurrent: Extending down the stem below the point of attachment. , secondary and tertiary venationVenation: The arrangement of veins in the leaf. obscure; pore at edge of stamenStamen: The pollen-producing reproductive organ of a flower. , punctiform (ca. 0.15 mm) with protruding tissue from innermost surface, connective elevated, male zone remained white basalBasal: Forming or belonging to a bottom layer or base. ly and stained brown distally in alcohol. Sarawak [Bau]. Lithophytic on limestones .. 📌Schismatoglottis bauensis
17B. Leaf blades abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly glaucousGlaucous: Covered with a whitish powder or waxy coating. , leaf base always decurrentDecurrent: Extending down the stem below the point of attachment. , secondary venationVenation: The arrangement of veins in the leaf. prominent, tertiary venationVenation: The arrangement of veins in the leaf. sometimes pronouncedly tessellate; pore at inner surface of stamenStamen: The pollen-producing reproductive organ of a flower. , oblongOblong: (ca. 0.3 mm), connective flat, male zone completely stained brown in alcohol. Sarawak. [Padawan and Serian]. Terrestrial in deep soil on limestones and sandstones .. 📌Schismatoglottis confinis
 


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