Tribe CUPRESSINE^E. 



Flowers monoecious, rarely dioecious. Stamens in decussate pairs or in 

 whorls of three. Scales of the mature strobiles (fruits) opposite or whorled, 

 rarely sub-spirally arranged, consisting of two parts although apparently 

 simple, the bract being concrescent with the scale except at the apex. 

 Ovules erect, 1-9 in one-two series. 



Sub-tribe 1. Juniperince. 



Scales of strobiles (galbuli) concrescent and becoming fleshy. 

 Leaves homo- or dimorphic, in whorls of three or in 



decussate pairs. Staminate flowers axillary or terminal 1. Juniperus. 



Sub-tribe 2. Thuince. 



Scales of strobiles ligneous in decussate pairs. Branchlets 

 flattened or angulate. Foliage dimorphic ; primordial leaves 

 free and spreading ; adult leaves squamiform, appressed or 

 more or less concrescent. Scales of strobiles in decussate 

 pairs or sub-spirally arranged. 



Flowers dioecious, uppermost scales only of the strobiles 



fertile ... ...... - ................ 2. Fitzroya.* 



Flowers monoecious, scales of strobiles thickened. 



Scales of strobiles horizontal at the base, with a peltate 



expansion, and bearing two or more seeds ... ... 3. Cupressus, 



Scales of strobiles ascending, oblong or broadly 

 clavate. 



Scales 8-12, more or less imbricated ; seeds 



winged or wingless ... ... ... ... 4. Thuia. 



Scales 4-6, valvate, the middle or largest pair 

 only fertile ; seeds with an oblique wing at the 

 apex... ... ... ... ... ... ... 5. Libocedrux. 



Tribe TAXODINE^E. 



Flowers monoecious, on different branches. Staminate flowers solitary, 

 spicate, paniculate or umbellate; terminal or axillary; stamens spirally 

 crowded. Scales of strobiles spirally arranged and composed of two 

 structures at first distinct, the ovulife ous scale and a bract-like appendage 

 which coalesces with it and becomes obliterated in the mature ligneous, seed- 

 bearing scale. Ovules 2-9, erect or inverted. 



Leaves homo- or heteromorphic, persistent. 

 Staminate flowers solitary. 



Anther cell-*, 2. Strobiles globose, with the scales 



ascending, subacuminate at the apex. 

 Seeds 3-6, pendulous ........ ...... 6. Athrotaxis. 



Staminate flowers spicate. 



Anther cells, 3-5. Strobiles globose, with the scales 

 ascending, sub-peltate, and acutely lobed at the 

 apex. 

 Seeds 4-5, erect ... .. ... ... ... ... 7. Cryptomeria. 



Anther cells, 2-5. Strobiles cylindric, with the scales 

 horizontal and thickened into a rhornboidal apex 

 with a transverse depression at the centre. 

 Seeds 5-7, pendulous ... ... ... .. ... 8. Sequoia. 



Leaves homo- or dimorphic, deciduous. 



Staminate flowers paniculate or solitary. 



Anther cells, 4-8. Strobiles globose or obovoid, with 

 the scales imbricated, rugose, and obscurely 

 mucronate- 

 Seeds2, erect .................. 9. Taxodtum. 



Callitris is here omitted. Referred to later in the series. 



