134 MICllOCACHRYS. 



Gen. MICROCACHRYS. Hooker. The Small-coned 

 Tasmania!! Cypress. 



Flowers, monoecious, or male and female on the same plant, 

 but separate ; the male catkins in clusters, and cylindrical ; the 

 female ones solitary and drooping. 



Cones, cylindrical, very small, terminal, nodding, and thicker 

 than the branchlets. 



Scales, spreading, loosely imbricated, ovate, boat-shaped, 

 concave, and from eight to ten in number. 



Seeds, solitary, and naked, at the base of each scale, but much 

 larger, and covered with a dry, transparent, membranaceous 

 tegument. 



Leaves, in opposite cross pairs, four-rowed, regularly tiled on 

 the branchlets ; those on the adult ones scale-formed, and ovate. 



Name, derived from fMLKpa, small, and KU'xpv;, a pine cone, 

 the cones being very small. 



A large evergreen bush, found in Van Diemen's Land. 



MiCROCACHRYS TETRAGONA, Hooktr, the Small-Coued Cypress. 

 Syn. Arthrotaxis tetragona. Hooker. 



Leaves, arranged in four rows on the young plants ; those on 

 the more adult ones, imbricated, rhomboid-ovate, and keeled on 

 the back, sitting closely, but not adhering to each other ; male 

 flowers, clustered on the ends of the little branchlets, two lines 

 long, cylindrical, and erect ; the female ones, solitary, terminal, 

 and curved or drooping, with from eight to ten scales to each 

 cone. Cones, terminal, nearly cylindrical, much thicker than 

 the top of the branchlet, and composed of spreading scales, 

 resembling the leaves, but much smaller. Scales, spreading, 

 recurved, loosely imbricated, ovate, boat-shaped, acute-pointed, 

 and concave in the middle. Seeds, solitary at the base of each 

 scale, erect, entirely naked, and somewhat greater than the 

 scales, with a dry, transparent, membranaceous covering. 



