Materials for a Flora of the Malayan Peninsula. 



xiT, Pliihjdraceae. 

 xiTi, Xyrideae. 



XIV. Commelinaceae. 



Outer perianth whorl sepalino, inner 

 eorolline. 

 Stamen 1 

 Stamens 3. 



Flowers in a terminal head of 



brown bracts. Leaves grass}' 



Flowers in panicles or capitula 



axillary or terminal. Leaves 



herbaceous 



Petaloidea]'] Apocarpeae. 



Carpels separate usually mimerous. 

 Minute sapropliytes, leafless . . . . xv. Triurideae. 



Aquatic plants leafy. 

 Perianth, petals conspicuous wbite . . xvi. AUsmaceae. 

 Perianth often absent xvir. Naiadaceae. 



Calycinae, 

 Perianth lobes calycine stiff small. 



Herbs or climbers; leaves entire . . 

 Trees or shrubs. Leaves usually pinnate 



Xudiflorae. 

 Perianth none. 

 Shrubs or trees unisexual. Leaves linear 



stiff 



Herbs inflorescence bisexual, leaves broad 



herbaceous 

 Aquatic floating plants, flowers solitary 

 minute . • 



xviii. Flagellariae. 

 XIX. Palmae. 



XX. Pandanae. 

 XXI. Araceae. 

 XXII. Lcinnaceae. 



Glumaceae. 



Flowers enclosed in dry bracts. Flowers 

 unisexual. 

 Periiinth segments 6 or less minute xxiii. Eriocaulaceae. 

 Flowers usually l)isoxual in spikes. Peri- 

 anth none. 

 Stem solid usually triquetrous. No 

 paleae or lodiculcR . . .. .. xxiw Cyperaceae. 



Stem usuallv fistulous and terete. 

 Paleae and lodicules . . • • xxv. Gramineae. 



