INDEX. 
Abies, pp. 514, 518, 939 
(Figs. 350, 353). 
Abietineae, 518, 527, 958. 
Abortion, 219, 602. 
Absorption, 700, 961. 
Absorption of assimilated 
substances, 720. 
Acacieae, 557. 
AcalyphejE, 661. 
Acanthaceae, 65, 68, 658. 
Acanthus, 648. 
Acarospora, 325. 
Accumulation of characters, 
924. 
Acer, 535,615,617, 651,940. 
Acerineae, 610. 
Acetabularia, 65, 272, 955. 
Achenium, 615. 
Achillaea, 932. 
Achlya, 12, 273, 902, 955 
(Figs. 8, 9, 178, 179). 
Achromatin, 18, 946. 
Aconitum, 495, 538, 607,608. 
Acorn, 614. 
Acorus, 115 (Fig. 96). 
Acrocarpous Mosses, 370. 
Acropetal order of develop- 
ment, 170. 
Acrosticheae, 441. 
Acrostichura, 435, 436, 441. 
Actinomorphic, 954. 
Actinostrobeae, 527, 
Acyclic, 600, 641. 
Adaptation, 934. 
Adhesion, 219, 546. 
Adiantum, 182, 424, 425,427, 
442, 915 (Figs. 293, 295- 
297). 
Adventitious formations, 171, 
173, 433, 639, 953. 
iEcidiomycetes, 244, 330, 
956. 
^cidium, 330. 
iEsculineae, 660. 
iEsculus, 644 (Fig. 455). 
-^thalium, 262, 841. 
Agapanthus, 22. 
Agaricus, 336 (Figs. 225, 226, 
227). 
Agave, 556, 594, 621. 
Aggregatae, 658. 
Agrimonia, 578. 
Agrostemma, 579. 
Ailanthus, 652 (Fig. 97). 
Akebia, 534 (Fig. 357). 
Albumen, 492. 
Albuminoids, 706. 
Albuminous, 587. 
Alchemilla, 568, 677. 
Aldrovanda, 649. 
Alepyrum, 542. 
Aletris, 127. 
Aleurone, 51, 947. 
Algae, 231, 241. 
Alisma, 589, 626, 952. 
Alismaceae, 626, 631 (Fig. 
431). 
AUiaria, 574. 
Allionia, 581. 
Allium, 17, 88, 581, 623, 624, 
629, 939 (Figs. i5,73> 424, 
425). 
Almond, 637. 
Alnus, 555, 652. 
Aloe, 127, 193, 629 (Fig. 152). 
Aloineae, 136, 496. 
Alopecurus, 596. 
Alpinia, 625 (Fig. 429). 
Alsineae, 661. 
Alternate arrangement, 189, 
601. 
Alternation of generations, 
222, 225, 233, 239, 342, 
385, 486, 488, 899, 903, 
954. 
Althaea, 546, 552, 553 (Figs. 
42, 83, 360, 377, 378, 
381). 
Aluminium, 695. 
Alyssum, 544. 
Amaranthaceae, 137,645,661. 
Amaranthus, 653, 950. 
Amentiferae, 656. 
Amidoplasts, 948. 
Ammonia, 698. 
Amoeboid-movement of pro- 
toplasm, 39, 263. 
Amorpha, 599. 
3Q 2 
Amorphophallus, 183, 624 
(Fig. 141). 
Ampelidcae, 644, 660, 866. 
Ampelopsis, 217, 865, 866. 
Amphigastria, 356. 
Amphithecium, 375. 
Amygdaleae, 651, 662. 
Amyrideae, 660, 
Anacardiaceae, 644, 660 (Fig. 
452). 
Anagallis, 565, 616 (Fig.392). 
Ananasineae, 632. 
Anaptychia, 323, 325 (Figs. 
218, 219). 
Anatropous, 492, 570. 
Anchusa, 598. 
Ancistrocladus, 962. 
Andreaea, 373, 374 (Fig.255). 
Andreaeacese, 361, 380. 
Andrcecium, 490, 541. 
Androgonidium, 279. 
Aneimia, 105, 421, 423, 440 
(Fig. 106). 
Anemone, 640, 
Anemophilous, 494, 908. 
Aneura, 346, 356, 358, 952. 
Angiocarpous, 306. 
Angiocarpous Lichens, 323. 
Angiopteris, 93, 416 (Figs. 
291, 292). 
Angiosperms, 497, 534. 
Angle of divergence, 188, 201. 
Anisocarpae, 655, 658. 
Anisostemonous, 641. 
Annual ring, 132, 652, 813. 
Annular vessels, 22, 23. 
Annulus, 338, 381, 435. 
Anona, 557. 
Anonaceae, 657, 962. 
Anterior, 600. 
Anthela, 596. 
Anthemis, 599. 
Anther, 491, 541 (Figs. 360, 
382). 
Anthericum, 577. 
Antheridium, 234, 268, 290, 
299, 343, 349, 387, 394, 
411, 423, 442, 469, 487, 
515, 899 (Figs. 177, 179, 
