Drymoda 



( 312 ) 



Duboisia 



Drummoudii, Je. , yel. 

 integrif olia, Je. , \vh 

 trailer (.vy>j. teuella). 



Je., wh. ; 



at the edge of a bog garden. If on a rather dry 

 place, Drummondii must have a little shade, but 

 octopetala can do with more sun. For the latter, 

 peaty loam and sand are best. They are propa- 

 gated by division and by seeds sown in spring : 

 also by cuttings under a band-light or a bell-glass. 



Principal Species : 



octopetala, 

 trailer. 



lanata, woolly Ivs. 



Tninima ; ..ULL! I i'orilL. 



DRYMODA. 



Only one species of this Malayan genus (ord. 

 Orchidaceoe) appears to be known. It is a small- 

 growing stove Orchid that does best when fixed 

 npon a block of wood with a little sphagnum about 

 its roots. 



Only Species : 



picta, 3", Mch., grn., pur. 



DRYMOGLOSSUM. 



A small genus (ord. Filices) of low-growing 

 stove Ferns that are increased by division, and 

 thrive in a mixture of peat and loam. 



Principal Species: 

 camosum. piloselloides. 



subcordatum. rigidum. 



DRYMONIA. 



A genus (ord. Gesneraceaj) of stove evergreen 

 climbers. The plants do best in mellow loam. 

 Cuttings root in very sandy soil beneath a bell-glass 

 over bottom heat. Punctata and villosa are now 

 referred to Episcia. 



serrulata, G', aut., pur. 

 (*;/ bicolor). 



Principal Species : 

 cristata, 4', Aug., grn. 

 marmorata, G', Je., yel., 



pk. 



DRYMOPHLCE US. 



A small genus (ord. Palma)) of handsome Palms 

 that require good loam and a stove temperature. 

 Propagation is by seeds. 



Principal Species : 



smgaporensis 

 choraphis 

 eusis). 



(see Pty- 

 singapor- 



appemliculatus, 30'. 

 ceramensis, 30'. 

 leprosus (syns. oliva 1 - 

 formia and Kumphii) . 



DRYNARIA (see POLYPODIUM). 



DRYOBALANOPS. 



The principal species, aromatica (ord. Diptero- 

 carpeie), is a stove evergreen tree that thrives in 

 rich, mellow loam. Propagation is by seeds. The 

 tree is indigenous to Sumatra and has great 

 economic value, inasmuch as it provides a vast 

 proportion of the natural camphor. 



DRYOPTERIS (see PTEBIS). 



DRYOSTACHYUM. 



A small genus (ord. Filices) of Ferns that thrive 

 best in the stove. They are closely allied to the 

 Drynaria section of Polypodium, and referred to 

 that genus by botanists. Increase is by division, 

 and the plants do well in a mixture of loam and 

 peat. 



Principal Species : 

 caudatum. pilosum. spleudens. 



DRYPETES (ec XYLOSMA). 



DRYPIS. 



A dwarf growing hardy evergreen (ord. Caryo- 

 phyllese). Propagation is by seeds when procur- 

 able, and by cuttings inserted under a hand-light 

 in the early "summer. A mixture of loam, peat, and 

 sand suits, and a dry situation must be afforded. 



Only Species: 

 spinosa, 9", Je., bl. 



DRY ROT. 



Most fungi need a fair amount of moisture to 

 ensure development, but there are two or three 



DllOSERA CAl'ENSIS (see p. 311). 



species which prefer drier conditions. The dry- 

 rot fungus attacks dry timber and so works among 

 the wood cells that the tissues presently crumble 

 up like dust. Roof beams are sometimes attacked, 

 and as their collapse might mean loss of life, as 

 well as property, they should be occasionally 

 examined, especially in very old structures and 

 when any curvature is noticed. Good ventilation, 

 dressing the timber with creosote before use, and 

 washing with corrosive sublimate are preventives 

 and remedies. 



DUBOISIA. 



Australian plants (ard. Solanacea?) of shrubby 

 habit, and needing greenhouse protection. Loam, 

 peat, and sand form a suitable compost, and propa- 

 gation is effected by cuttings. The white, funnel- 

 shaped flowers are produced in axillary clusters. 



Only Cultivated Species : 

 Hopwoodii. Leichariltii. 



Diuinia (sec Jlinnalantkits). 

 Ihtchekia (nee Palisota). 

 DucJtnla (we Omplialca). 

 DticVs Font (sec Podopliyllnm). 

 Duhamelia (ste llamclia). 



