11 



PLATE VI. 



THE FLOWBRINQ PLANT. 



DIAGRAM I. Showiug— 



o„_. ( Nodes, bearing leaves (L. nodus, a knot). 



I Internodes, bearing no leaves (L. inter, between ; iioilus, a knot). 

 i Leaf. 



Appendages of Stem < Bud, a shortened stem with crowded leaves. 

 ( Branch, an expanded bud. 



p -R i Axillary, in the angle between the leaf and stow (L. axilla, the armpit). 



1 Terminal. 

 Fig. 1 (a). The Horse Chestnut. Showiug — 



Internodes. 



Nodes with leaf-scars. 



Two axillary buds. 



Terminal bud. 

 Fig. 1 (6). The Same. Showing the scars left by the falling otf of the bud-scale.s. These scars mark the 



commencement of a year's growth. 

 Fig. 2. Bii.b of Onion. Showing — 



Stem, short. 



Leaves, crowded, and stored with nutriment. 



Buds (1) terminal and (2) axillary. 



Roots, fibrous. 



The peculiarity of the Onion is this : it remains permanently in the bud condition. A 



permanent bud of that kind is called a bulb. 

 Fig. 3. Showing Kinds of Leaves — 



Scale leaves. 



Foliage leaves — the green leaves which manufacture starch (L. folium, the leaf). 



Bracts — leaves near flowers (L. bractea, a thin plate). 



Floral leaves (L. flos, a flower). (Red.) 

 Figs. 4, 5. E-xamples of Leavis — 



Pinnate leaf, with elongated midrib (Pea). 



Palmate leaf, with extremely short midrib (Horse Chestnut). 



Compound leaf. The incisions extending into the midrib, and subdividing one leaf into a number 

 of leaflets. 



Stipules — appendages originating from the base of leaf-stalk, not from the stem. 

 Fig. 6. Showing Foliage Leaves united or connate (L. con, together ; nafus, born). 

 Fig. 7. Flowee of Pea. Showing — 



Sepal leaves united below (gamo.sepalous calyx). I 



Petal leaves of unequal size (irregular corolla indicated in formula by "), 

 Fig. 8. Showing General Structure of the Flower — 



Calyx (Gr. kalyx, a cup). 



Corolla (L. coi-olla, a little crown). 



Stamens or Androecium » _,., ,t ., i i, 



,„ 1 ., Filament (L. tilum, a tm-eud). 



(Gr. o?!??', male; otAos, /■ . , : . ,, 



, X , , V Anther contammg poUen-f'rains. 



house) (male organs) ) o r o 



Pistil or Gyncecium (Gr. 1 Ovary containing ovules. 



fiune, female ; oihos, V Style. 



house (female urgans) ) Stigma (Gr. sligma, a brand). 

 Fig. 9. Plan of Pea Flower. Showing — 

 Calyx = five .sepal leaves united. 

 Corolla = five petal leaves separate. 



Androecium = ten stamen leaves, nine united and one free. 

 Gyncecium = one carpel leaf. 



Formula V Ca. (5), Co. .'), An. (9) + 1 Gn. 1. 



