GLOSSARY AND INDEX. 



Dimorphous (Gr. fit's, twice, and 



ju.wp0j, shape, form), of two forms; 



said of ferns whose fertile fronds are 



unlike the sterile. 

 Dioecious (Gr. fit's, twice, and <HKOS, 



house), bearing the male and female 



organs on different plants. 

 Distichous (Gr. fit's, twice, and 



ort'xos, a row), disposed in two rows 

 Distribution, Geographic, 62. 



Geologic, 67. Local, 4. 

 Dryopteris, no; also 2, 5, 7, 8, 10, 



u, 16, 26, 42,68, 73. 



Ebeneous (Lat. ebenus, ebony), 

 black like ebony. 



E later, the spirally coiled append- 

 ages of the spores of Equisetum. 



Endospore (Gr. Iv&ov, within, and 

 o-jTopds, a seed), the inner wall of the 

 spore. 



Epidermis (Gr. rt, upon, and 

 Se'p/ua, the skin), the external covering 

 of the plant. 



Epiphytic (Gr. ri, upon, and 

 <vTOf, a plant), growing upon an- 

 other plant, but not nourished by it. 



Equisetacese, 132; also 31 Lit- 

 erature of, 34. 



Equisetum, 132 ; also 31, 33, 69. 



Exospore (Gr. ew, outside, and 

 (rTropos, a seed), the external covering 

 of the spore. 



Falcate (Lat..A/.r, a sickle), scythe- 

 shaped ; slightly curved upward. 



Farinose (Lat. farina, ground 

 corn), covered with a white or yellow- 

 ish powder. 



Fern Allies, 28 



Fern Structure, Literatureof, 28 



Ferns, Artificial Synopsis of genera 

 of, 80 Mode of growth. 2. Time of 

 fruiting. 4. Variation in. 2. 



Ferruginous (Lat. ferrum, iron), 

 resembling iron rust. 



Fertilization, 21. 



Fibrillose (Lat. jilra, a thread), 

 formed of small fibres. 



Filices, 75. 



Filiform (Lat. filum, a thread, 

 forma, form), thread-like. 



F la be Hate (Lat. flabellum, a fan), 

 fan-shaped; broad and rounded at 

 the summit and narrow at the base. 



Flaccid (Lat. flaccus, flabby), soft 

 and weak. 



Floating-fern. Vide Cera- 

 topteris. 



Flowering-fern. Vide Os- 

 munda. 



Foliaceous (Lat. folium, a leaf), 

 having the nature of a leaf. 



Fovea (Lat. a small pit), the depres- 

 sion in the leaf of Isoetes containing 

 the sporangium. 



Frond (Lat. front, a leafy bough), 

 that which answers to the leaf in 

 ferns, 8, 26. 



Fructification of Ferns, 10; of 

 OPHIOGLOSSACE.*, 30 ; of Equisetum, 

 33; of Club mosses, 35; of Isoetes, 38; 

 of Marsilia, 39; of Pilularia, 39; 

 of Azolla, 39; of Salrinia, 40. 



Fulvous (Lat. fulv us, reddish-yel- 

 low), tawny. 



Fungi, 49. Literature cf, 56. 



Gasteromycetes, 52- - Litera- 

 ture of, 59. 



Genera, 44- 



Generic Names, 41. 



Geographic Distribution, 62. 

 Literature of, 69. 



Geologic Distribution, 65. 



Germination of Ferns, 19; of 

 OPHIOGLOSSACE^E, 30; of Equisetum, 

 33; of Club-mosses, 36; of Isoetes, 38; 

 of Marsilia, 40. Literature of, 23. 



Glabrous (Lat. glaber, smooth) 

 smooth. 



GlanduliferoUS (Lat. glandula, a 

 little kernel, and ferre, to bear), fur- 

 nished with glands 



Glaucous (Gr. yAavKos, sea-green), 

 covered with a bloom like a plum. 



Globose, spherical in form or nearly 

 so. 



Goethe on species, 43. ' 



