ANALYSIS OF THE ORDERS 



141 



85. Fruit flesliy, compound. Juice (sap) milky. Avtocarps 114 



85. Fruit dry (except iu Myrica, 121). Sap watery 36. 



36. Ameutsgloljular, racemed. Nutlets 2-celled. (Z*j'M*rfam(5'ar.) Order 62 

 3G. Aments globular, solitary. Nutlets 1-celled. Sycamores 116 



36. Aments cylindrical or oblong 37. 



37. Ovary 1-celled, 1-seeded. Fruit dry or fleshy. Galeworts. 120 

 37. Ovar^ 2-celled, 2-ovuled, 1-seeded. * Birchworts. 121 



37. Ovary many-ovulcd, many-seeded. *WiUoiuxvorts. 122 



D. Orders of the Conoids. 



Leaves simple. The fertile flovi'ers in cones. Stems branched. 

 Leaves simple. The fertile flowers solitary. Stems branched. 

 Leaves pinnate. Stems not branched, palm-like. 



*Pin€wort8. 127 

 *Yew8. 128 

 129 



E. Orders of the Spadiciflor^. 



1. Trees or shrubs with palmately- cleft leaves all from one terminal bud, and 



a branching spadix arising from a spathe. Falnis. 130 



1. Herbs with simple (rarely ternate) leaves. Spadix simple 2. 



2. Plants minute, floating loose on the water. Duchneats. 132 



2. Plants with stem and leaves rooting in the soil. . . .3. 



3. Spadix evident, in a spathe or on a scape. * Aroids. 131 



3. Spadix obscure or spike-like. Stems leafy 4. 



4. Flowers with no perianth, densely packed. *Typhads. 182 



4. Flowers with a perianth or not. In water. * Naiads. 133 



F Orders of the Floride^. 



1. Flowers (not on a spadix) in a small, dense, involucrate head. . .17 



1. Flowers (not on a spadix) solitary, racemed, spicate, &c 2. 



2. Perianth tube adherent to the ovary 4. 



2. Perianth free from the ovary 3 



3. Petals and sepals differently colored (except in Medeola, 147;.. ..9 



3. Petals and sepals similarly colored 12. 



4. Flowers imperfect. . . .5. 

 4. Flowers perfect , . .6 



5. Low herbs, in water * Frogbits. 



5. Woody climbers. ramroots. 



6. Stamens 1 or 2, growing to the pistil (gynandrous). * Orchids. 



6. Stamen only 1, with half an anther. Arrawicorts. 



6. Stamens 3 to 6, distinct 7. 



7. Perianth woolly or mealy outside. Ovary half-free. Bhodivorts. 142 



7. Perianth glabrou's outside ... .8. 



184 

 144 

 138 

 139 



