Key to Species of the Homalomena Borneensis Complex


Based on Wong, Hoe, Soon & Boyce ( Aroideana V36, 2012 )

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



1A. PistilPistil: The female reproductive part of a flower. late flower zone accounting for nearly 1/2 of the entire spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ; staminate and pistilPistil: The female reproductive part of a flower. late flower zones contiguous, not separated by a naked interstice .. 2
2A. SpatheSpathe: A large sheathing bract enclosing the flower cluster. green at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. ; pistilPistil: The female reproductive part of a flower. s somewhat lax, with stigmaStigma: The receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. rather clearly 3-lobed, wider than pistilPistil: The female reproductive part of a flower. ; interpistilPistil: The female reproductive part of a flower. lar staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s shorter than pistilPistil: The female reproductive part of a flower. s. Kalimantan Timur .. 📌Homalomena tirtae
2B. SpatheSpathe: A large sheathing bract enclosing the flower cluster. white at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. ; pistilPistil: The female reproductive part of a flower. s very dense with stigmaStigma: The receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. not 3-lobed, narrower than pistilPistil: The female reproductive part of a flower. ; interpistilPistil: The female reproductive part of a flower. lar staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s equalling or slightly longer than pistilPistil: The female reproductive part of a flower. s. W Sarawak .. 📌Homalomena ovata
1B. PistilPistil: The female reproductive part of a flower. late flower zone accounting for 1/3 or less of the entire spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ; staminate and pistilPistil: The female reproductive part of a flower. late flower zones separated by a naked interstice .. 3
3A. Staminate and pistilPistil: The female reproductive part of a flower. late flower zones separated by a zone with staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s scattered along a short naked interstice .. 4
4A. Leaf blades adaxially glossy with margins conspicuously red; prophyllProphyll: One of two first leaves to appear on a lateral shoot, usually smaller than the leaves that follow. s, 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 and petiolar sheath wings with red margins; spatheSpathe: A large sheathing bract enclosing the flower cluster. limb internally white with a red margin, exterior glossy pale green with margins and the distal part of the spatheSpathe: A large sheathing bract enclosing the flower cluster. limb stained red; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. stipeStipe: A stalk or stem. ca. half as long as the pistilPistil: The female reproductive part of a flower. late flower zone; C-NE Sarawak, SW Brunei .. 📌Homalomena ibanorum
4B. Leaf blades adaxially matte; no organs of the plant with red-margins; spatheSpathe: A large sheathing bract enclosing the flower cluster. exterior never stained red; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. stipeStipe: A stalk or stem. no more than one third the length of the pistilPistil: The female reproductive part of a flower. late flower zone; W Sarawak .. 5
5A. PistilPistil: The female reproductive part of a flower. s and stigmaStigma: The receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. s yellowish, directed outwards; interpistilPistil: The female reproductive part of a flower. lar staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s with the clavateClavate: Club-shaped; thicker at the apex than at the base. portion papillatePapillate: Bearing minute, pimplelike protuberances. ; pistilPistil: The female reproductive part of a flower. late flower zone weakly fusiform; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. somewhat sinuous; leaf blade glaucousGlaucous: Covered with a whitish powder or waxy coating. abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly .. 📌Homalomena borneensis
5B. PistilPistil: The female reproductive part of a flower. s white with grey stigmaStigma: The receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. s, directed upwards; interpistilPistil: The female reproductive part of a flower. lar staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s with the clavateClavate: Club-shaped; thicker at the apex than at the base. portion smooth; pistilPistil: The female reproductive part of a flower. late flower zone markedly fusiform; spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. straight; leaf blade not glaucousGlaucous: Covered with a whitish powder or waxy coating. abaxialAbaxial: Facing away from the stem of a plant (especially denoting the lower surface of a leaf). ly .. 📌Homalomena clandestina
 


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