GLOSSARY AND INDEX. 



Acrogenous (Gr. d^pou, the high- 

 est part, and Yei'i-a;/, to produce), per- 

 taining to plants whose growth takes 

 place at the summit. Includes Ferns, 

 Mosses, etc. 

 Acrostichese, 76. 

 Acrostichum, 89 ; also 5, 6, 12, 76. 

 Aculeate (Lat. actdeus, diminutive 

 of acus, a needle), armed with 

 prickles. 

 Adder-tongue. V^'i' Ophio- 



glossum. 

 Adiantum, Sg ; also 5, 13, 42. 73- 77- 

 Adnate (Lat. ad. to, nasci. to be 

 born), growing fast to some other por- 

 tion of the plant. 

 Algee, 49.— Literature of, 55. 

 Allosorus. Vide Crypto- 



gramme. 

 Analogy (Gr. dva, according to; 

 Xo'yos, ratio, proportion), similarity in 

 function; distinguished from homolo- 

 gy, indicating similarity in structure. 

 Anastomose (Gr. dva.<noixovv, to 

 open into), forming a net- work ; said 

 of veins which unite with each other. 

 Anemia, 123 ; also 18, 79. 

 Annulus (Lat. a ring), the ring 

 partly or completely surrounding the 

 sfJorangium. 

 Antheridium (plu. antkeridia) 

 (L,at. anthera, an anther, and Gr. 

 ei'So?, form), the part containing the 

 male element. 20. 

 Antherozoid (Lat. anthera, an 

 anther; Gr. ^cJoi', an animal, and ei'So?, 

 form), the male element of crypto- 

 gams. 20. 

 Archegonium (plu. archegonia) 

 (Gr. dpxv, beginning, and yovri, off- 

 spring), the part containing the fe- 

 male element. 20. 



Arcuate (Lat. area.?, a bow), curved 

 like a bow. 



Areola (plu. areol<e). (Lat. diminu- 

 tive of area, an open place), a space 

 enclosed by anastomosing veinlets. 



Asexual Reproduction in 

 Ferns. 27. 



Aspidieae, 78. 



Aspidium. Vide Dryopteris, 

 16, 78. 



Asplenieae, 78. 



Asplenium, 103; also 2, 3, 5, 6, 15, 

 27, 78. 



Auriculate (Lat. auricula, z. little 

 ear), furnished with ear-like append- 

 ages. 



Azolla, 127; also 39. 



Beech-fern. Vide Phegop- 



teris. 

 Bi (Lat. bis, twice), (as a prefix) two, 



twice or doubly. 

 Bladder-fern. Vide Cystop- 



teris. 

 Blechneae, 77- 

 Blechnum, 102 ; also 15, 77. 

 Botrychium, 129; also 2, 3, 5, 19, 



29, 30. 

 Brake or Bracken. Vide 



Pteris. 

 Bryophytes (Gr, /3p«or, moss, and 



<|)uToV, plant), 52. 

 Buds, borne on ferns, 27. 

 BulbletS borne on ferns, 27. 



Calamariaceae, 67. 



Camptosorus, 108 ; also 3, 6, 9, 16, 



27, 78. 

 Carboniferous Age, Ptendo- 

 phytes of, 68. 



