38 IsI.M I IPTIVE CATAT.oM I 



Each scale has a strong well-marked epidermal layer, and the 

 ground-tissue is composed of large, irregular, rounded cells with 

 intercellular spaces. There is a small central vascular strand 

 in each. 



The seeds are attached to stalks about 1-2 mm. in diameter, 

 each of which is nearly uniform throughout its length and is 

 roundish in outline. The epidermal layer is well marked, but it 

 is common to the stalk and the adjacent sterile scales. The 

 ground-tissue is composed of thick- walled rounded cells with 

 large intercellular spaces. An endodermis-like layer surrounds 

 the central vascular strand. 



Each orthotropous seed is erect, placed centrally on the stalk 

 bearing it, and has a long well-developed micropylar region, 

 which is directed approximately at right angles to the surface 

 of the cone. The seeds trom base to tip of micropyle measure 

 more, but the oval mass of the seed proper is about 3-4x2- 

 -"> nun., the majority of the sections being 3x~ mm. 



The testa is composed of three distinctly organised layers (see 

 I'-xt-h'g. lL r ): an outer flesh, a central stony l:iycr one or two 

 cells in thickness, and an inner flesh. These regions are clearly 

 described and figured by Wieland (1911, fig. 2), who considers 

 that, as in other members of the genus, the .shoulder of the sml 

 is thickened and ribbed, comparably to the seeds described by 

 Oliver & Scott (1904) and Oliver (1909). 



The nii>- c If us is only preserved as a structureless membrane. 



The microfft/ff is long and rather widely and irregularly 

 opened, the inner layer being formed from the internal zone of 

 the testa. Its characters and the details of the pollen-chamber, 

 etc., are still desiderata. 



The endosperm, if represented at all, is only a small fragment 

 left to one side of the root-end of the large embryo ; it is figured 

 by Scott (1909, p. 569, text-fig. 203 D ,-). 



The embryo practically fills the inner regions of the seed, and 

 has a massive root-end pointing towards the micropyle. In 

 transverse section its two cotyledons are very clearly seen, 

 and their tissues are often well preserved. In each, running 

 longitudinally, are five or six vascular bundles. Between the 

 two cotyledons the plumule growing-point is sometimes pre- 

 served, and is figured by Scott (1909, tijr. 205, p. 570). 



Til' 1 ceils comprising the embryo in the allied />'. M 



