DEVELOPMENT OF PLANTS 361 



two rows, the petiole remaining on tiie stem after fall of leaf; 

 the strobilus is ovoid with rather leathery scales. The spruce 

 and hemlock have pendent strobili. Abies or fir, leaves flat in 

 two rows, the stems being smooth after leaf fall, strobili erect on 

 the branches. Taxodium or bald cypress, leaves flat in two rows 

 and deciduous, strobilus globose with thick, spirally-arranged and 

 shield-like scales. Thuja, arbor vitae, or northern white cedar, 

 leaves scale-like, closely appressed to the branches in four rows, 

 strobili ovoid with flat tough scales (Fig. 260, 5). Chamaecy- 

 periis or southern white cedar, leaves resembling Thuja, but cones 

 glpbose with shield-like opposite scales (Fig. 250, 6). Junipertis 

 or juniper, pointed scale-like leaves, opposite or in whorls on 

 stem, scales of strobili becoming fleshy and fusing to form a 

 berry-like fruit (Fig. 260, 7). 



