GLOSSARY AND INDEX. 



Acrogenous (Gr. a*po, the high- 

 est part, and yewav, 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. aculeus, diminutive 

 of acus, a needle), armed with 

 prickles. 



Adder-tongue. Vide Ophio- 



glossum. 



Adiantum, 89 ; also 5, 13, ^ 73, IT- 

 Ad n ate (Lat. ad, to, nasci, te 

 born), growing fast to some other por- 

 tion of the plant. 

 Algae, 49- -Literature of, 55. 

 AHosorus. Vide Crypto- 



gramme. 



Analogy (Gr. aVa, according to; 



Ao'yos, ratio, proportion), similarity in 



function; distinguished from homolo- 



gy, indicating similarity in structure. 



Anastomose (Gr. aVao-ro^o^, to 



open into), forming a net- work ; said 



of veins which unite with each other. 



Aneimia, 123; also 18, 79- 



Annulus (Lat. a ring), the ring 



partly or completely surrounding the 



sporangium. 



Antheridium (plu. antheridia} 

 (Lat. anthera, an anther, and Gr. 

 ei'Sos, form), the part containing the 

 male element. 20. 



Antherozoid (Lat. anthera, an 

 anther; Gr. <aov, an animal, and et'Sos, 

 form), the male element of crypto- 

 gams. 20. 



ArchegOnium (plu. archegonia} 

 (Gr. opx 1 ?, beginning, and Y OI/1 7< off- 

 spring), the part containing the fe- 

 male element. 20. 



Arcuate (Lat. arcus, a bow), curved 

 like a bow. 



Areola (plu. areolte'). (Lat. diminu- 

 tive of area, an open place), a space 

 enclosed by anastomosing veinlets. 



Asexual Reproduction in 

 Ferns. 27. 



Aspidieae, 78- 



Aspidium. Vide Dryoptens, 

 16, 78, 



Aspleniese, 78. 



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

 27, 78. 



AurlCUlate (Lat. auricula,*, little 

 ear), furnished with ear-like append- 

 ages. 



Azolla, 127 ; also 39. 



B 



Beech-fern. Vide Phegop- 

 teris. 



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



twice or doubly. 

 Bladder-fern. Vide Cystop- 



teris. 



Blechnese, 77- 

 Blechnum, 102; also 15, 77. 

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



29, 30. 

 Brake or Bracken. Vide 



Pteris. 

 Bryophytes (Gr. /Bpvov, moss, and 



<J>vToV, 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. 



