Order: Ranales
Key to families of order Ranales
A. Hydrophytes
B. Latex present…….…………………..…..Nymphaceae
BB. Latex absent………………..…….Ceratophyllaceae
AA. Terresterial
C. Herbs…………………………………Ranunculaceae
CC. Shrubs
D. Volatile oils present
E. Carpels more than one
F. Fruits fleshy………..Annonaceae
FF. Fruits dry…….…Magnoliaceae
EE. Carpel one ……..………….Lauraceae
DD. Volatile oils absent……………Berberidaceae
Key to families of order Rhoedales
A. Flower regular
B. Gynophore present …………………..…Capparidaceae
BB. Gynophore absent
C. K 2, G (2-∞) ......................................Papaveraceae
(A 2: Fumeroideae, A 4: Hyperoideae, A ∞: Papaveroideae)
CC. K 2+2, A 2+4, G (2) …………………Cruciferae
AA. Flower irregular
D. Gynophore or Androgynophore present
E. Gynophore present …………….....Moringaceae
EE. Androgynophore present
F. Androgynophore long….Capparidaceae
FF. Androgynophore short…….Resedaceae
DD. Gynophore or Androgynophore absent..Papaveraceae
(Fumeroideae)
Key to families of order Rosales
A. Fruit legume...........................................................Leguminosae
(Ө: Mimosoideae, %: Caesalpinioideae, % & papilionaceous corolla:
Papillionoideae)
AA. Fruite not legume
B. A 4+4 ………………………………….…Crassulaceae
BB. A 5+5 …………………………….........Saxifragaceae
BBB. A 10+10+10 ………………………..……..Rosaceae
(Fruit dehiscent: Spiroideae, Fruit indehiscent,
Flower epigenous: Pomoideae, Flower not so,
syncarpous: Prunoideae, Apocarpous: Rosoideae)
Key to families of order Geraniales
A. Flowers unisexual …………………………….Euphorbiaceae
AA. Flowers bisexual
B. Sepals glanded …………………………Malpighiaceae
BB. Sepals not glanded
C. Style single
D. Stigma free
E. A 4+4 ……………Tropaeolaceae
EE. Not so …………..Geraniaceae
DD. Stigma simple
F. Nectary glands present..Rutaceae
FF. Nectary glands absent
………..….Zygophyllaceae
CC. Style free
G. Leaves simple ……………….Linaceae
GG. Leaves compound ………Oxalidaceae
Key to families of order Sapindales
A. Stamens 10, one functional surrounded by 5 cushins, Fruite drupe or berry …..................................................…Anacardiaceae
AA. Stamens 5+5 fertile, climbing plants, Fruit capsule ………………………….………………………...…..Sapindaceae
Key to families of order Malvales
A. Androgynophore present ………………………Sterculiaceae
AA. Androgynophore absent
B. Stamens numerous free or in bundles ………Tiliaceae
BB. Stamens numerous united
C. Stamens monadelphous, pollen grains spiny
…………………………..…………Malvaceae
CC. Stamens polyadelphous, pollens not spiny
………………………….……Bombacaceae
Key to families of order Myrtiflorae
A. Flower perigynous
B. Petals present ……………………….……..Lythraceae
BB. Petals absent …………………………..Thymelaceae
AA. Flower epigynous
C. Sepals colored ………………………….….Onagraceae
CC. Sepals green
D. Placentation parietal ……………......Punicaceae
DD. Placentation axile …...……….……Myrtaceae
Key to families of order Contortae
A. Flowers pentamerous, corona present at corolla throat, filaments reduced ……..........................................................….Apocynaceae
AA. Flolwers tetra- or pentamerous, corona absent, leaves silvery
B. Stamens 2 epipetalous ...................……...……Oleaceae
BB. Stamens 4 epipetalous ……………..……Loganiaceae
Key to families of order Tubiflorae
A. Stamens 5 epipetalous
B. Staminode present ……………………….Bignoniaceae
BB. All stamens fertile
C. Boragoid inflorescence, stiff hairs present
………………………….……….Boraginaceae
CC. Not so
D. Filaments hairy at base, plants climbing
…….……..…………..Convolvulaceae
DD. Not so
E. Leaf base asymmetric, green
capitate sticky stigma..Solanaceae
EE. Leaf base symmetric, stigma
branched …...…Polemoniaceae
AA. Stamens 2-4 epipetalous
F. Placentation parietal ……………….…..Orobancaceae
FF. Placentation axile
G. Style gynobasic ………………………Labiatae
GG. Style terminal
H. Corolla tube curved …..….Verbenaceae
HH. Corolla tube straight
I. Placentation swollen
………………....Scrophulariaceae
II. Placentation not swollen, 2
bracteoles ………..Acanthaceae
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