INDEX TO THE GENERA 



Synonyms are in italics. Genera with * prefixed are probably not 

 native in the county. Genera with this sign f prefixed are not known 

 to occur in Berkshire. 



Acer, 126-8. 

 tAceras, 477. 

 Achillea, 283. 

 *Aconitum, 27. 

 Acorus, 509. 

 AcrosticMun, 608. 

 Adinocarpus, 513. 

 *Adonis, 6. 

 Adoxa, 254. 

 Aegopodium, 240. 

 Aethusa, 248. 

 Agraphis, 491, 

 Agrimonia, 194. 

 Agropyron, 598-600. 

 Agrostemma, 89, 

 Agrostis, 559-63. 

 Aira, 564. 

 Airochloa, 573. 

 Ajuga, 413. 

 Alchemilla, 194. 

 Alisma, 511. 

 Allium, 489. 

 Alnus, 446. 

 Alopecurus, 557. 

 Alsine, 92-6. 

 Alyssum, 50. 

 *Amaranthus, 417. 

 *Anacharis, 465. 

 Anagallis, 336. 

 *Anchusa, 349. 

 fAndromeda, 328. 

 Androsaemum, 105. 

 Anemone, 4-6. 

 Anethum, 244. 



Angelica, 249. 

 Antennaria, 278. 

 Anthemis, 284. 

 Anthericu)7i, 495. 

 Anthoxanthum, 556. 

 Anthriscus, 243. 

 Anthyllis, 144. 

 Antirrhinum, 371. 

 Apargia, 317. 

 Apera, 564. 

 Aphanes, 194. 

 fApinella, 235. 

 Apium, 235-7. 

 Aquilegia, 26, 

 Arabis, 45. 

 Arctium, 296. 

 Arenaria, 96-8. 

 *Aristolochia, 434. 

 Arrnoracia, 52. 

 Arnoseris, 308. 

 Arrhenatherum, 571, 

 Artemisia, a88. 

 Arum, 509. 

 Arundo, 563, 572. 

 Asarum, 434. 

 *Asparagus, 487. 

 *Aspei'ugo, 348. 

 Asperula, 265. 

 Aspidium, 605, 607, 



608. 

 Asplenium, 604. 

 * Aster, 274. 

 Astragalus, 147. 

 Athyrium, 605. 

 Atriplex, 421-3. 



Atropa, 362. 

 Avena, 569. 



B. 



Baldingera, 556. 

 Ballota, 411. 

 Barbarea, 43-5. 

 Barkhausia. 310. 

 Bartsia, 381. 

 Batrachium, 7-15. 

 Bellis, 274. 

 *Berberis, 28. 

 *Berteroa, 50. 

 *Beta, 421. 

 Betonica, 404. 

 Betula, 445. 

 Bidens, 281-3. 

 Blackstonia, 340. 

 Blechnum, 603. 

 *Blitum, 417. 

 Blysmus, 529. 

 *Borago, 349. 

 *Botryanthus, 490. 

 Botrychium, 614. 

 Brachypodium, 595-7. 

 Brassica, 58-61. 

 Briza, 576. 

 Bromus, 588-95. 

 Bnmella, 403. 

 Bryonia, 232. 

 Bucetum, 587. 

 Buda, 102. 

 *Bunias, 69. 

 Bunium, 238, 242. 

 Bupleurum, 234. 



