REPRODUCTIVE ORGANS. CHAP. lit.. 



phyllous, that is consisting of one piece divided 

 into several segments which are united at the base, 

 or it is polyphyllous, that is consisting of several 

 distinct pieces, as in GoatVbeard. It is also either 

 simple, that is polyphyllous with the pieces ar- 

 ranged in one circular row, as in Goat's-beard ; or 

 double, that is being itself enclosed in a secondary 

 calyx, as in Ox-tongue. It is scaly, that is con- 

 sisting of a number of closely imbricated scales, 

 as in the Thistle ; or calyculate, that is imbricated 

 with a circular row of scales, at the base resembling 

 an exterior calyx, as in Wild Succory ; or squarrose, 

 that is having the scales reflected at the points, as 

 in Arctium ; or fringed, that is having the margin 

 of the scales set with short bristles of equal length, 

 as in Black Knapweed ; or muricated, that is 

 having the margin of the scales set with sharp 

 prickles, as in Rough HawkVbeard ; or thorny, 

 that is having the scales furnished with thorns, as 

 in Common Star Thistle. It is spherical, as in 

 Burdock; or hemispherical, as in the Daisy; or 

 egg-shaped, as in Achilkea ; or oblong, as in 

 Hemp-agrirnony. 



Defini- ARTICLE 2. The Glume. The glume is a chaffy 

 and membranaceous substance accompanying the 

 flowers of Grasses, and constituting their calyx, 

 but not so formed as to constitute a cup. Some- 

 times it consists of one piece only, and sometimes 

 of two distinct pieces called valves. If it consists 



