558 ON SEEDLINGS 



tinate or pinnate with twenty-three to twenty-five spiny- 

 serrate leaflets, the veins of which are longitudinal, slender, 

 and numerous. In all three cases the leaflets are circinate 

 in vernation like most Ferns. 



Cycas Beddomei, Dyer (fig. 679). 



Primary root very long, stout, fleshy, colourless, giving off a few 

 short lateral rootlets after a time. 



Hypocotyl very short, stout, subterranean, passing somewhat 

 abruptly into the root. 



Cotyledons two, subterranean, and remaining in the seed till 

 they decay, petiolate ; petioles stout, fleshy, serniterete, sufficiently 

 long to allow the plumule to make its exit between them during 

 germination. 



Stem short, erect, woody, and of very slow growth, undeveloped 

 for some considerable time after germination. 



Leaves radical, ultimately all cauline, pinnate, alternate, ex- 

 stipulate, petiolate, pilose when young particularly on the midrib 

 beneath, evergreen, subcoriaceous ; pinns linear, acute, entire with 

 a distinct midrib but no other visible venation, circinate in verna- 

 tion ; petiole downy when young, ultimately glabrous, terete. First 

 leaf, and sometimes the second, or even the third reduced to a large, 

 subulate, semiterete, fleshy scale, without leaflets. Second leaf 

 usually foliaceous with eleven to nineteen linear, entire leaflets. 



Zamia integrifolia, Ait. 



Cotyledons two, remaining in the seed, subterranean. 



Stem erect, ultimately woody, of slow growth, and consequently 

 short ; internodes undeveloped. 



Leaves ca?spitose, pinnate ; leaflets notched at the apex, sessile, 

 almost linear but rather tapering towards the base, light green at 

 first then dark green, glabrous, with parallel veins. 



Primary leaves reduced to short scales closely investing the 

 plumule, and owing to the undeveloped condition of the inter- 

 nodes resembling a resting or winter bud. First true leaf with two 

 pairs of linear-spathulate, somewhat oblique leaflets ; petiole thinly 

 hairy, green, soon becoming brown. 



