27fi THE TASMANIAN FLORA. 



Leaves minute, closely imbricating. 



Leaves in 4 regular rows ... ... •■• ••• 3. Microcachrys. 



Leaves irregularly arranged. 



Tree. Ovules solitary or few 2. Dacrydium. 



Shrub. Ovules many, in a small reflexed 



amentum ••• J- Pherosphetra. 



Leaves linear-oblong, obtuse ■ ... 5. Podocarpus. 



Leaves none. Ultimate branches assuming the 



character of irregularly rhomboid leaves 4. Phyllocladus. 



TaxodinecB. Ovuliferous scales partially fused with but exceeding the bracts, 

 arranged in a spiral form. Ovules few or many. 



Leaves imbricating or spreading ... ... .. 6. Athrotaads. 



CaUitrinete. Ovuliferous scales and bracts intimately blended in pairs or 

 whorls. Ovules 1 to many. Leaves minute, appressed. 



Leaves in 4 regular j'ows. Cone minute ... '^ ... 7. Fitzroya. 

 Leaves in whorls at intervals. Cones about 1 inch... 8. Callitris. 



1. PHEROSPH^RA. 



Female amenta ovate, of several spirally-arranged scales, each bearing a single 

 erect ovule, the scales thickening at the base on ripening, but not otherwise 

 altering. 



The genus consists of one species, and is confined to Tasmania. 



P. HOOKBRiANA, Archer. A densely-branched erect shrub, 3-6 feet, dicecious. 

 Leaves thick, keeled, obtuse, closely appressed, ^-f line long, in rows, but not 

 regularly 4-rowed. Male amenta erect, solitary, terminal,, 1-lf line. Fruiting 

 amenta of about 8 scales, differing but little from the leaves, reflexed. 



Mount Field Range, Mount La Perouse, western mountains, Cradle Mount, &c. 



2. DACRYDIUM. 



Female amenta of few fleshy bracts, in a short head or reduced to a single 

 one, each with a single reversed ovule. Fruiting amenta not conspicuously 

 altered. Aril cup-shaped and nearly enclosing the seed. 



A small genus, with representatives from the Indian Archipelago to New 

 Zealand. 



D. FBANKLiNii, S. A tall much-branched tree. Leaves thick, keeled, closely 

 imbricate, about ^ line. Male amenta small, ovoid, terminal. Fruit at the end 

 of branches hardly larger than the vegetative ends. Seeds globular, about 1 line 

 diameter. 



Common in many parts in swampy localities, from Upper Huon River to Port 

 Davey and Macquarie Harbour. 



3. MICROCACHRYS. 



Pemale amenta of numerous spirally-arranged loosely imbricate bracts, each 

 bearing one recurved ovule ; in the fruiting condition the bracts become succulent 

 and the seeds erect. 



A genus of but one species. 



M. TBTBAGONA, H. Creeping and much-branched. Leaves about f line long, 

 closely imbricate, in 4 rows. Male amenta solitary, terminal, about 1^ line long. 

 Fruiting amenta oblong, about 4-6 lines long, fleshy, crimson. 



Common on numerous mountain-tops. 



