BOTANICAL INDEX. 



Abies (Lat. " a fir tree"), secretions from the, 49.' 



Acacia catechu (Gr. akakia, an Egyptian thorn, 



1 and German katchu, an astringent herb), 

 tannic acid obtained from, 50, 54; pollen of 

 the, 122. 



Acer campestris (Lat. the " field maple," from 

 acer sharp), 75. 



A. saccharinum (Lat. the " sugar - yielding 

 maple"), 23. 



Acids, vegetable secretions, 50. 



Acotyledonous seeds (Gr. a privative, and cotyle 

 a cavity " wanting cotyledons"), 135. 



Acrogens (Gr. acros the summit, and ginomai 

 to grow), Class II. of Lindley, 186. 



Acrostalagmus cinnabarius (Gr. akros the sum- 

 mit, and stalagma a distilled drop; Lat. 

 "cinnabar"), 145. 



Adder's-tongues, 175. 



Adnate stamens (Lat. adnata growing to), 121. 



Aerial roots, 92. 



Aerial stems, 72. 



JEsohynomene (Gr. aischynomai to be sensitive), 

 section of the, 16. 



Agaricus campestris (Lat, " the field mush- 

 room"), 147. 



Agaricus foetens, and A. campestris, 173. 



Agave Americana (Gr. agavos admirable), the 

 American flax-plant, 22 ; stomata of the, 62. 



Aggregati (Lat. "aggregata "), Class II. of 

 fruits, 132. 



Air-chambers of an aquatic plant, 12. 



Albumen of seeds, 135. 



Alder bark, a vegetable dye, 54. 



Alder tree, section of its root, 17. 



Algae (Lat. alga a sea-weed), some of them 

 claimed both by the botanist and the zoolo- 

 gist, 5 ; family of the, 147 ; comprehend a 

 large proportion of the lower vegetable king- 

 dom, 172. 



Algales, 185. 



Alismales (Gr. alisma the water-plantain), 187. 



Alkanet root, a vegetable dye, 54. 



Allium (Lat. " an onion "), 41 . 



A. porrum (Lat. "the leek"), cells from the 

 flowering stem of the, 9. 



Aliman's botanical investigations, 38, 39. 



Alnus (Lat. "the alder tree"), 17. 



A. glutinosa, 54. 



Amentales (Lat. amentum a catkin), 188. 



Amnios of the seed (Gr. amnion a thin 



brane), 36. 

 Amomales (Gr. a and momos a counter-poison), 



187. 

 Amphitropal of the ovule (Gr. amphi about, and 



trope a turning), 128, 129, 135. 

 Amygdalus amara (Gr. amagdala an almond, 



and Lat. " bitter "), oil of the, 47. 

 Anatropal of the ovule (Gr. ana backwards, and 



trope a turning), 128, 129. 

 Anchusa Italica(Gr. angchousa paint, and trope 



a turning), 128, 129. 

 A. tinctoria (Lat. "tinted"), 54. 

 Andropogon schoenanthus (Gr. aner a man, and 



pogon a beard ; schoinos a rush, and anthos 



a flower), oil of the, 47. 

 Anethum graveolens (Gr. ano upwards, and 



Meotorun; Lat. "strong-smelling"), oil of 



the, 47. 

 Angiospermia (Gr. angos a vessel, and sperma 



seed), order of, 153 et passim. 

 Angular-lobed leaf, 98. 

 Animalcules, the source of silica, 55. 

 Annatto, a vegetable dye, 54. 

 Anther of the stamen (Gr. anthos a flower), 118, 



119; of flowers, 180. 

 Antheridia of the fern (Gr. anthera belonging 



to flowers), 141; of mosses, 143. 

 Anthocarpi (Gr. anthos a flower, and karpo* 



fruit), 132. 

 Anthracite coal (Gr. anthrax coal), porous cruet 



from, 17. 

 Antirrhinum, pollen tubes in the pistil of the, 



122. 

 Apocarpus ovary (Gr. apo from, and karpos 



fruit), 126. 



Apocarpi, Class I. of fruits, 131. 

 Aporum anceps (Gr. a and poros, wanting 



pores; Lat. anceps double), tubercles and 



cavities of the, 20. 

 Apple, its seed inclosed by sclerogen, 13; acid 



juices of the, 50. 

 Apple-leaf, stomata of the, 61. 

 Aquatic plants, circulation in, 15. 

 Arales (Lat. aro to plough), 187. 



