34 ACTINOSTKOBtrS. 



No. 1. ACTINOSTROBUS PTRAMiDALis, Miquel, the Pyramidal 

 Swan River Cypress. 



Leaves in threes, vertical, very small, scale-formed, three- 

 cornered, ovate, acute-pointed, rigid, decurrent at the base, and 

 slightly spreading at the points. Branches alternate, ascend- 

 ing, slightly spreading out at the extremities, very numerous, 

 long, and slightly angular. Branchlets dense, dark-green, and 

 having no particular direction; younger ones covered with 

 spinescent leaves, partially imbricated; the adult ones stand 

 out stiff, while those on the cone bearing lateral ones are 

 scale-formed, very short, and entirely cover the stem. Cones 

 solitary, somewhat globular, composed of six scales, in opposite 

 pairs ; those at the base much the shortest, and the interior 

 ones much the largest. Scales convex on the back, sharply 

 ribbed, woody, and without any terminal sharp-point. Seeds, 

 in twos, under each of the upper scales. 



A dense, narrow, pyramidal bush, growing six feet high, with 

 ascending branches, and dark green branchlets, found growing 

 in the Swan River Colony, along the sea-shore, where it is 

 brackish from being inundated, and along the south-western 

 coast of New Holland. 



It is not hardy. 



No. 2. AcTiNOSTEOBUS ACUMINATUS, Parlatore, the Acumi- 

 nate Swan River Cypress. 



Leaves on the principal branches and branchlets in threes, about 

 one-third of an inch long and half a line broad, with the base 

 decurrent and the upper part free, erectly- spreading, linear, 

 acute and somewhat spiny pointed, the upper surface tolerably 

 flat, the under one convex and keeled, and the margins 

 rough. Cones solitary, and produced at the ends of the short, 

 erect branchlets ; they are ovate-pointed, and composed of six 

 scales in opposite pairs, all connected at the base on a very 

 short column, and nearly three-quarters of an inch long, 



