PBACTIGAL GUIDE TO GARDEN PLANTS 



monadelphouB,' as in the Mallows (p. 270), 

 diadelphous,' as in the Labiate family 



Vm, 3. — ACULBAT0S. FIG. 4.— ACUMINATE. 



(p. 742), or 'polyadelphous,' as in the 

 Hypericums (p. 265) ; according as they 

 are arranged in one, two, or more fas- 

 cicles or bundles. 



Adnate, one organ united to another, as 

 an ovary to the calyx-tube, or stamens to 

 petals. 



Adpressed, pressed close to anything, but 

 not united with it, like the hairs on stems 

 and leaves. 



Adventitious, accidental, out of the usual 

 place. Boots are said to be ' adventitious ' 

 when developed from any part of a plant 

 except the ' radicle ' or first downward 

 growth from the seed. 



^ruginous, verdigris coloured. 



£stivalis, produced in summer. 



Estivation, the arrangement of the parts of 

 a flower (i.e. sepals, petals, stamens, 

 pistils &o.) when in bud. The term ' prte- 

 floration ' is used in America. 



Agrestis, growing in fields. 



Alabastrum, a flower-bud. 



Alae, the wings or side petals of a papiliona- 

 ceous flower, represented 

 in fig. 5 at w. 



Alate, alatus, winged, as 

 the stems of Thistles- 

 and various seeds — e.g. 

 that of the Elm. 



Albescens, albescent, 

 turning white, or whit- 

 ish. 



Albumen, nutritious mat- 

 ter contained in the seed 

 to feed the young plant until it has de- 

 veloped roots and leaves (see p. 25). 



Alburnum, the sap-wood, or outer rings of 

 wood in dicotyledonous trees. 



Albus, white. 



Alliaceous, with a Garlic or Onion-Uke odour. 



Alpestris, sub-alpine. 



Alpine, a term applied to plants native of 

 high mountains, beyond the forest range. 



Alternate, leaves arranged on the stem one 

 after another (fig. 6). Petals are alternate 

 with the sepals, or the stamens with the 

 petals, when they stand over the spaces 

 between them. 



FI&, 5. — AL^. 



Alveolate, honey-combed like ; with hollows 

 or depressions in regular order, as on the 

 bare flower heads or receptacles of many 

 of the Composites (p. 492). 



»IG. 6. — ALTEllNATE. 



FIG. 7. — AMENTUM. 



PIG. 8.— 

 AMPLBXICAUL 



Amentaceous, a term applied to plants 

 having the flowers in catkins, like the 

 Willow and Hazel (fig. 7). A female flower 

 is shown at /, and the male ones at m. 



Amplexicaul, said of leaves when clasping 

 the stem with the base 

 (fig. 8). 



AmpuUaceous, swelling 

 out like a bottle or 

 bladder. 



Anastomosing, forming a 

 network, as the veins of 

 leaves and fronds. 



Ancipital, two-edged, as in 

 the flower-stems of many 

 Iridaceous plants. 



Andrcecium, the male organs or stamens of 

 a flower collectively (figs.9, 55, 56, andl09). 



Anemophilous, wind-loving — said of wind- 

 fertilised flowers, like Willows, Conifers 

 &C., the pollen of which is blown about by 

 the wind and is thus carried to the stig- 

 matic surface of the carpels in the female 

 flowers. 



Anfractuose, bent hither and thither. 



Angios, covered, hidden. Angiospennous, 

 having the seed enclosed in an ovary 

 (p. 121). 



Anises, unequal. Anisomerous, parts un- 

 equal in number in the same flower. 



Annual, flowering and fruiting the first sea- 

 son of being raised from seed, and of one 

 year or season's duration only (p. 78). 



Annulus, the name 

 given to the ring of 

 tissue around the 

 upper portion of the 

 stalk in Mushrooms 

 and other Fungi. 

 Also applied to the />': 

 row of strong cells in 

 spore cases of Ferns. 



Anther, the essential 

 part of the stamen 

 which contains the 



poUen. In fig. 9 the anther is shown by 

 the letter a. 



FIG. 9.— ANTHEEiS, 



