CLASSIFICATION. 



Alliance 16. — Asterales. 



Order xl. Compositce. 



Alliance 17. — Campanalbs. 



Order xli. Campanulaeece. 



xlii. Goodeniacece. 

 xliii. Stylidacem. 



OAMOPETALJB HYPOGYNJE. 



Alliance 18. — Ericales. 



Order xliv^. Ericacea. 



xlv. EpacridacecB. 



Alliance 19. — Primulales. 



Order xlvi. Plumhaginacem. 

 xlvii. PrimulacecR. 



Alliance 20. — Gentianales. 

 Order xlviii. Oleacea. 



xlix. ApocynacecE. 

 1. Loganiacece.. 

 li. Gcntianacece. 



Alliance 21. — Polemonialbs. 



Order lii. Boraginacece. 



liii. Gonyolvulacece. 

 IJY. Solanacece. 



Alliance 22. — Peesonales. 



Order Iv. Scrophulariacece. 



Ivi. Lentibulacece. 

 Ivii. Myoporacem. 



Alliance 23. — Lamiales. 



Order Iviii. Labiateee. 



lix. Plantaginacece. 



MOlSrOCHL A.MYDE^. 



Alliance 24. — Chenopooiales. 



Order Ix. Fhytolaccacece. 



Ixi. ChenopodiacecB. 



Ixii. Amarantacem. 



Ixiii. Sderanthacece. 



Ixiv. I'olygonacecE. 



Alliance 26. — Ladbales. 



Order Ixv. Monimiacea. 



Ixvi. Lauracece. 



Alliance 26. — Proteales. 

 Order Ixvii. Froteacem. 



Ixviii. Thymeliacem. 



Alliance 27. — Ecphorbiales. 

 Order Ixix, Euphorhiaceae. 



Alliance 28. — Urticales. 

 Order Ixx. Urticacece. 



Alliance 29. — Amentalks. 



Order Ixxi. Casuarinacece. 



Ixxii. GupulifercB. 



Alliance 30. — Santalales. 



Ixxiii. SantalacecB. 



The Monocotyledons, which are looked upon as a lower class of flowering 

 plants, are notable ohiefly for their leaves retaining a simple shape, parallel 

 venation, and often sheathing bases. The cycles of the flowers are generally 

 composed of 3 or 6 members. The structure of the embryo is distinct, in the 

 first leaf being solitary. 



The Monocotyledons do not stand as an intervening link between Dicotyledons 

 and lower plants, but form a well-marked group of specially-developed types 

 from a primordial centre, some of the forms, as Gramine.ce, being very specialised. 

 At the same time, in the geologic record they greatly antedate the other class. 

 Monocotyledons have been traced back even to the Carboniferous era, while 

 Dicotyledons only make their appearance just prior to the Cretaceous. No 

 Tasmanian member of this division exceeds the condition of perennial herbs. 



The following is the classification of the Monocotyledons here adopted : — 



Sub-class — PETALOiDEiE bpigyne. 

 Order Ixxiv. Hydrocharideoe. 

 Ixxv. OrchidacecB. 

 Ixxvi. Burmanniacece. 

 Ixxvii. Iridacece. 

 Ixxviii. Amaryllidacece. 



Sub-class — PETALOiDEiE htpogtne. 



Order Ixxix. LUiacem. 



Ixxx. XyridacecB. 



Ixxxi. Juncacece. 



Ixxxii. TyphacecB. 



Ixxxiii. Lemnacece. 



