. Ants; their structure, development and behavior. nted by ants : 1. Cavities in Stems.—Almost any hollow or pithy stem, withresistant walls sufficiently thin to be pierced by ants, may beentered and occupied by theseinsects. Some plants, how-ever, are especially well-suitedto these purposes, for example,those of the Old World generaRandia, Myristica, Clcroden-dron, Kibara and Bambusa,with preformed cavities, andEndospermum and Juglanswith pithy stems; among theNew World genera : Cecropia,Triplaris, Tacliigalea, Hum-boldtia, Tachia, Ficus, Cordia,Dnroia, Conssapoa, Ptcro-cladon, Pterocarpon, B
. Ants; their structure, development and behavior. nted by ants : 1. Cavities in Stems.—Almost any hollow or pithy stem, withresistant walls sufficiently thin to be pierced by ants, may beentered and occupied by theseinsects. Some plants, how-ever, are especially well-suitedto these purposes, for example,those of the Old World generaRandia, Myristica, Clcroden-dron, Kibara and Bambusa,with preformed cavities, andEndospermum and Juglanswith pithy stems; among theNew World genera : Cecropia,Triplaris, Tacliigalea, Hum-boldtia, Tachia, Ficus, Cordia,Dnroia, Conssapoa, Ptcro-cladon, Pterocarpon, , Cladiuin, etc., withpreformed cavities, and Coc-coloba nvifcra, S a p i u in ,Sclncartzia, Platymyschiumand Sauibncns with pithy stems. The entrances to the cavities areactually foreshadowed as pits in the internodes in Cecropia andClcrodendron. 2. Tubers, Bulbs, Pseudobulbs, Rootstocks, etc.—Many examplescould be cited under this head. The most celebrated are the MalayanRubiaceous epiphytes of the genera Myrmccodia and Hydnophytnm,. FIG. 166. Sterns of plants. (Escherich, after Schimper.) A,Ficus inccqualis ; B, Triplaris americanus:C, same, older stem ; D, Hnmboldtialuiirifolia : .r, entrance to cavity of stem. ANTS. which have large pseuclobulbs full of preformed cavities, nearly alwaystenanted by ants. iVrtain ferns of the genus Lccanopteris from theregion, and certain orchids of the genera Grammatophyllum and
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910
