POL YPODIUM — PTERIS— TOD HA . 



Polypodium. — Comprised in this large genus are several species worthy of cultiva- 

 tion under glass. P. diversifolium, P. nigrescens and P. verrucosum should be grown 

 in a warm greenhouse or stove ; P. drepanum, P. pectinatum, P. plumosum, and P. 

 Schneideri thriving in a cool greenhouse or conservatory. Pot in equal parts loam, peat, 

 leaf-soil and sand. Partial shade is desirable. Propagated by spores and division of 

 the plants in March. 



Poltstichum. — Easily grown and effective ferns. P. triangulum and P. tripterum 

 ought to be grown in a stove. P. capense, P. flexum, P. setosum, and P. vestitum 

 succeeding in a greenhouse. Pot in two parts peat to one of loam, with charcoal and 

 sand added. Shady position. 



Pteeis. — Quite a large number of species and varieties belonging to this genus are 

 in cultivation, all more or less attractive in appearance and serviceable. P. Bausei, 

 P. ludens and P. tricolor are grown in stoves ; the following species succeed in either 

 greenhouses or conservatories: — P. argyrea, P. cretica and its varieties, albo-lineata 

 and nobilis ; P. longifolia Mariesi, P. scaberula, P. serrulata and its varieties, cristata, 

 gloriosa, gracilis and Mayi, P. Beginse, P. Keginas cristata, P. tremula, P. tremula 

 Smithi, P. umbrosa, P. Victorias and P. Wimsetti. Pot in a mixture of equal parts 

 loam, peat, leaf-soil and sand. Grow in partial shade. Propagated by spores ; dwarf 

 species by division of plants. 



Todea. — Crape Pern. A beautiful genus classed with Filmy Ferns. The most 

 desirable species are T. Fraseri (syn. Leptopteris Fraseri), T. grandipinnula, T. pellucida 

 (T. hymenophylloides), T. plumosa, T. superba, and T. Wilkesiana. Pot in equal parts 

 of peat, loam and leaf-soil, with silver-sand, lumps of sandstone and charcoal. May 

 be grown in a moist, shady position, or under bell-glasses and in cases. (See " Filmy 

 Ferns.") Propagated by spores and by division of the plants at potting time. 



Trichomanes. — Another genus of Filmy Ferns, in which are included a large 

 number of species. Those most deserving of recognition are T. angustatum, T. exsectum, 

 T. parvulum, T. radicans and its varieties, alabamense, Andrewsi, cambricum, dilatatum 

 and dissectum ; with the species T. reniforme and T. tenerum. Soil and position the 

 same as for Todea. Propagated by spores and division of the plants. 



"Woodsia. — The species polystichoides and polystichoides Veitchi are both desirable 

 for the greenhouse. Pot in equal parts of loam and peat, with some sand, and 

 grow the plants in a shady position. They are raised from spores and increased by 

 division. 



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