ANALYTICAL KEY. XXvill 



# * Perianth adherent only to the base or lower half of the ovary. 

 Stamens 6 ; the anthers turned inwards : perianth covered 



with wool or scurf. 457 H.emodorace.e. 



Stamens 6 ; the anthers turned outwards. . . . 472 Melanthace.e. 



* # * Perianth wholly free from the ovary [inferior) : 



■*- Its 6 (or rarely 4) divisions similar, and colored alike. 



Perianth glumaceous, i. e. chaffy or husky : rushes. . . 479 Juncace.e. 



Perianth herbaceous : somewhat rash-like marsh plants : 



anthers turned outwards. 436 Juncagine^e. 



Perianth petaloid, or at least somewhat colored and corolla-like. 



Stamens fewer than the lobes of the perianth, or unequal 



and of two sorts : aquatic plants. . . . 483 Poxtederiace.e. 



Stamens as many as the divisions of the perianth and all alike. 



Style 1, undivided (in Tulip no style : stigma 3-lobed). 465 (84) Liliaceje. 



Style 1, but 3-parted or 3-lobed. Uvulariese, 472 (86) Melanthace.e. 



Styles 3, or sessile stigmas 3, separate. 



Leaves with tendril-bearing petioles : flowers dioecious. ) 



T , . , D c A (461 Smilace;e. 



Leaves whorled : flowers perfect. . . . . ' 



Leaves not tendril-bearing nor whorled : anthers 



turned outwards 472 (86) Melanthace.3. 



•*-■*- Its divisions of two kinds, viz. 3 herbaceous or membranaceous sepals and 3 col- 

 ored petals ; not furnished with glumaceous bracts. 



Pistils numerous and distinct; stamens from 6 to many. 436 Alismace/E. 



Pistil (ovary) one, 3-celled, many - several-seeded. 



Style 1. Thick or scurfy -leaved epiphytes. . . 458 BitOMELiACEiE. 



Styles or sessile stigmas 3. Leaves whorled. . . 461 Trilliacejs. 

 Pistil (ovary) one, 2 -3-celled ; the cells 1-2-seeded. 485 (86) Commelynace^e. 

 Pistil I : ovary 1 -celled, with 3 parietal placentas. . . 487 Xyridace^e. 



*-•*-*- Its divisions of two kinds, or the inner (corolla) rarely wanting; the outer 

 (calyx) mostly glumaceous or chaffy ; the fowers also furnished with glumaceous 

 or chaffy bracts. Rush-like herbs : flowers in dense heads. 



Pod 1-celled, many-seeded, with 3 parietal placentas. . 487 Xyridace.e. 

 Pod 2 -3-celled, 2- 3-seeded. .... 488 Eriocaulonace^e. 



C. Glumaceous Division. Flowers destitute of any proper perianth, except 

 sometimes small sccdes or bristles, but covered by glumes, i. e. husk-like or scale- 

 like bracts. 



Glume a single scale-like bract with a flower in its axil. 490 Cyperace.e. 



Glumes in pairs, of two sorts 535 (87) Gramine.e. 



