D OODIA — GL EICHENIA — GYMNOGRAMMA . 



Dictyogramma. — See Gymnogramma. 



Didymochkzena. — D. lunulata, a very distinct fern, is the only species in general 

 cultivation (though others are known;, and thrives in a shady part of a greenhouse. 

 Compost : two parts of loam to one of peat, rendered porous by pounded charcoal and 

 sand. Increased by spores. 



Doodia.— D. aspera, D. aspera multifida, D. blechnoides, D. caudata and D. media, 

 are all greenhouse and evergreen species. They should have a shady position and 

 succeed in a mixture of two parts loam, one part leaf-soil, with an admixture of pounded 

 charcoal and sand. 



Doryopteris. — See Pteris. 



Drynaria. — See Polypodium. 



Fadyenia.— F. prolifera, the only species known, is recommended for culture in 

 Wardian cases. 



Gleichenia. — Greenhouse ferns, several of them very beautiful. Some of the most 

 popular species are G. circinata, G. dicarpa longipinnata, G. dichotoma, G. fiabellata, G. 

 Mendeli, G. microphylla, G. rupestris and G. Speluncae. They thrive in well-drained 

 pans and a compost of two parts fibrous peat, one part fibrous loam, charcoal and sand. 

 A somewhat shady position is desirable, and the plants should not be syringed. Increased 

 by spores, also by layering and division of the creeping stems. 



Goniophlebium. — A near ally of Polypodium. G. appendiculatum, G. glaucum, G. 

 sepultum, and G. subauriculatum are worthy of inclusion in most collections of stove 

 ferns. The last-named is a favourite basket fern. They should be grown in a moist, 

 shady position in two parts rough peat, one part each of porous loam and leaf soil, with 

 some sand. Propagated by spores and by division of the old plants at potting time. 



Gymnogramma.— Gold and Silver Ferns. A few of the species are valuable for exhi- 

 bition purposes, and all require stove-heat. Those most cultivated are G. chrysophylla, 

 and its varieties — Alstoni, Laucheana, Mayi and Parsonsi ; G. ochracea, G. peruviana 

 argyrophylla, G. schizophylla (Fig. 107), G. tartarea, G. Yeitchi and G. Wettenhal- 

 liana. Pot in a mixture of equal parts loam, fibrous peat and leaf-soil, adding sharp 

 sand and charcoal freely, also a sprinkling of coarsely-ground bones. The plants should 

 not be heavily -shaded, or syringed. Propagated by spores, plantlets, and by division 

 of the old plants at potting time. Though the species illustrated is shown in a basket, 

 it is equally suitable for pot culture. 



Hemionites. — Greenhouse Evergreen Ferns suitable for growing in Wardian cases. 



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