i8 FLOWERING PLANTS OF THE RIVIERA 



Lemnacete. Minute floating cellular green fronds. Flowers in slits or 

 cavities of the frond, most minute and rare, 1-3 in a spathe. Stamens 1-2. 

 Ovary i celled, 1-7 ovuled. Fronds covering ponds. 



Naiadaceae. Flowers 1-2 sexual. Perianth of 4 valvate sepals or imper- 

 fect, or o. Stamens as many as sepals or fewer. Carpels 1-4, i ovuled. 

 Radicle very large. Marsh or water plants with inconspicuous green flowers. 



** Perianth 2 seriate, usually coloured. Ovary superior, syncarpous. 

 Liliacese. Flowers usually 2 sexual, and showy. Perianth usually 6 

 cleft or of 6 segments, petaloid. Stamens 6, opposite perianth segments. Ovary 

 3 celled. Fruit various. Herbs, except Ruscus, of various habit. 



Juncaceae. Flowers 2 sexual. Perianth of 6 green or brown segments. 

 Stamens usually 6. Ovary 1-3 celled with 3 basilar, or many parietal or axile 

 ovules. Capsule 3-valved. Rushy herbs with very narrow leaves and small 

 brownish-green flowers. 



*** Perianth 2 seriate, coloured (except Dioscoreacece). Ovary inferior, syncarpous, 



3 celled. Seeds large, albuminous. 



Dioscoreaceae. Flowers i sexual. Perianth small, 6 partite, herbaceous. 

 Stamens 6; anthers bursting inwards. Ovary 3 celled. Berry few seeded. 

 Climbing herbs, with broad leaves with netted veins and inconspicuous flowers. 



Iridacese. Flowers 2 sexual. Perianth 6 partite, petaloid. Stamens 3, 

 separate ; anthers bursting outwards. Ovary 3 celled. Capsule 3 valved. Herbs 

 with tuberous root, or creeping root-stock, narrow leaves and usually handsome 

 flowers. 



Amaryllidacese. Flowers 2 sexual. Perianth 6 partite, petaloid. Stamens 

 6, separate ; anthers bursting inwards. Ovary 3 celled. Capsule 3 valved. 

 Herbs with narrow leaves and usually handsome flowers. 



**** Trees with unbranched stem, and numerous flowers enveloped in a spathe. 

 Palmaceze. Flowers mostly i sexual. Perianth inferior, 6 partite or lobed in 

 2 series. Stamens usually 6, on base of perianth ; anthers versatile. Ovary 1-3 

 celled, or of 3 distinct or connate carpels, cells 1-2 ovuled. Shrubs or trees, armed 

 or not. Stem erect, scandent or decumbent. Leaves alternate, variously compound. 

 Inflorescences at first enclosed in a woody or coriaceous spathe. Flowers usually 

 small, green or yellowish. 



***** Perianth 2 seriate, coloured. Ovary inferior, syncarpous, i celled. 

 Orchidaceae. Flowers irregular, 2 sexual. Perianth 2 seriate, coloured. 

 Ovary inferior, syncarpous, i celled. Stamens i or 2, adnate to the style. Fruit 

 capsular. Herbs of various habit. 



****** Perianth oor of bristles or minute scales. Ovary i celled, i ovuled; styles 

 or stigmas 2-3. Flowers spicale, solitary in the axils of imbricating 



bracts or glumes (Glumaceas). 



Cyperacete. Flowers 1-2 sexual. Perianth o or of bristles, rarely of scales. 

 Stamens 1-3 ; anthers basifixed. Ovary i celled, style i, stigmas 2-3, papillose, 

 ovule i, erect. Fruit compressed or 3-gonous. Stem usually solid and 3- 

 gonous ; leaves often grass-like but with entire sheaths. 



Gramineae. Flowers usually 2 sexual. Perianth usually of 2 very minute 

 scales. Stamens usually 3; anthers versatile. Ovary i celled, stigmas 1-2, 

 hairy or feathery. Fruit terete or grooved on one side. Stem cylindrical, usually 

 hollow except at the joints ; leaves with sheaths split often to the base. 



Phylum II. Gymnospermae. Trees and shrubs with (mostly) needle-shaped 

 or scale-like leaves. Seeds naked, generally borne on the scales of cones. 



Conifers. Perianth o, flowers in cones. Male with 2-8 celled anthers> 

 usually forming a small yellow-brown deciduous cone. Female cones large> 

 often woody, with one or more naked ovules on the scales, or of a solitary ovule 



