GLOSSARY or 



NVOLUTE : rolled inward from both edges (Fig. 93). 

 iEVOLUTE : rolled backward from both edges (Fig. 94). 

 ylUClN'ATE : coiled from the apex, as in Ferns (Fig. 9;")). 

 ilQUiTANT : each leaf doubled lengthwise and astride of the 

 next leaf within, as in Iris (Fig. 96). 



INFLORESCENCE. 



in-aiignncnf ofiho. Flotccrs or Floiccr-cJuaters on the stem. 



ode. 



Peuminal : when the separate flowers are on tlie ends of 

 stems or branches. 



Terminal Inflorescence is also known as Determinate, 

 or Definite, or Cymose, or Cextuifug^vl, and it is 



(a) Solitary : when a single Hower terminates the 

 stem, as in Tulip and Hepatica. In other words the 

 flowers do not form a cluster (Fig. 97). 



(b) A Cyme : when the flowers are in a cluster of 

 which the central flower (on the end of the main stem) is 

 the earliest (Fig. 98), as in Chickweed and Sweet-William. 

 In Chickweed the cyme is loose, and in Sweet-William it 

 is devse. 



(Special cases of Cymes arising from the axils of leaves 

 are referred to below under the head of Mixed Inflores- 

 cence. ) 

 fVxiLLARY : when the separate flowers spring from the axils 

 of leaves or bracts. 



Axillarj' Inflorescence is also known as Lateral or 

 Indeterminate, or Indefinite, or Racemose, or Botry- 

 OSE, or Centripetal ; and it is 



(a) Solitary : when the flowers are produced singlj^ in 

 the axils of ordinary leaves (not bracts), as in Morning- 

 Glory, etc. The flowers do not form a cluster. 



(b) A Raceme : when the flowers form a rather long 

 cluster, each flower being in the axil of a bract, and hav- 

 ing a pedicel (little stalk) of its own (Fig. 99). 



(In plants of the Cress familj' the bracts are absent.) 



(c) A Spike : when the separate flowers are sessile, or 

 nearly so, along the main axis, as ia Hollyhock, etc. 

 (Fig. ICO). 



(d) A Head : when the axis of the cluster is short, and 

 the flowers consequently rather closely' packed together, 

 as in Clover and Tliistle, etc. 



(e) An Umbel : when the pedicels of the flowers are of 

 the same length, and arise from the .same point (Fig. 101). 



(f) A Corymb : when the pedicels ai-ise from different 

 points on the stem, but the flowers reach the same level 

 above (Fig. 1021 



Fig. 93. 



Fig. 94. Fig. 95. 



Fig. 97 



Fig. 98. 



Fig. lilt. 



Fig. 102. 



Fig. ino. 



