HORACES. (MULBERRY FAMILY.) 415 



heads, or enclosed in the fleshy receptacle. Calyx of the sterile flowers 

 3-4-lobed. Stamens .3 -4, inserted on the base of the calyx. Filaments 

 inflexed in the bud, elastic. Calyx of the fertile flowers 3 - 5-sepalous. 

 Ovary 1 - 2-celled, 1 - 2-ovuled. Styles 2. Achenium 1-seeded. Embryo 

 curved, in fleshy albumen. 



1. MOBUS, Tourn. MULBERRY. 



Flowers monoecious, spiked ; the sterile and fertile flowers in separate spikes. 

 Calyx 4-parted. Stamens 4. Ovary 2-celled. Styles filiform. Achenium ovate, 

 compressed, covered by the succulent berry-like calyx. Trees, with rounded 

 leaves, and axillary spikes. 



1. M. rubra, L. Leaves cordate-ovate, acuminate, serrate, petioled, rough 

 above, white tornentose beneath, on young shoots 3 - 5-lobed ; stipules linear ; 

 sterile spikes slender, drooping ; the fertile ones ovoid or oblong, resembling a 

 blackberry in fruit. Rich woods, Florida, and northward. March. A small 

 tree. 



2. M. alba, L. Leaves cordate-ovate, acute, serrate, oblique at the base, 

 smooth and shining, sometimes lobed ; fruit whitish. Around dwellings. In- 

 troduced. A small tree. 



2. FICUS, Tourn. FIG. 



Flowers monoecious or dioecious, lining the inside of the fleshy closed recep- 

 tacle. Calyx of the sterile flowers 3-parted. Stamens 3. Calyx of the fertile 

 flowers 5-cleft, pedicelled. Styles lateral, slender. Achenium fragile. Embryo 

 hooked. Trees or shrubs, with entire or lobed leaves, and large convolute stip- 

 ules. Flowers axillary. 



1. F. aurea, Nutt. Branches pale, smooth, furrowed; leaves smooth, 

 coriaceous, oblong, entire, narrowed but obtuse at each end, stout-petioled ; re- 

 ceptacle orange-yellow, globose, bracted, on short and thick pedicels. South 

 Florida. A small tree. Leaves 3' - 4' long. Fruit about 4" in diameter. 



2. F. peduiiculata, Willd. Branches terete, uneven ; leaves ovate or 

 oval, coriaceous, entire, smooth, obtuse, rounded or slightly cordate at the base, 

 slender-petioled ; receptacle yellowish, globose or obovate, slightly bracted, as 

 long as the slender pedicels. South Florida. Tree 20 -40 high, multiply- 

 ing by means of aerial roots. Leaves 2' - 2^' long, l' wide. Receptacle rather 

 smaller than in No. 1. 



3. F. brevifolia, Nutt. Branches smooth ; leaves cordate-ovate, entire, 

 obtuse, smooth, on short petioles ; receptacle purplish-red, depressed-globose, 

 single, short-ped uncled, with 2-cleft bracts. South Florida, Dr. Blodgett. A 

 small tree. Leaves 2' long, with impressed veins. 



F. CARICA, L., is the commonly cultivated FIG. 



BROUSSONETIA PAPYRIFERA, Vent., the PAPER MULBERRY of our yards, 

 belongs to this family. 



