FAM. 53, 54, 55. 47 



rous on both sides or sometimes sparingly pubescent beneath, 

 never rugose; acorns solitary or spicate at the end of long pe- 

 duncles; cup hemispheric, nut twice longer than the cup. Sandy 

 soil near the coast, and planted. - Q. Virginian* (Q. virens). Live Oak 



53. Urticaceae, Xettle Family. 



Herbs with simple stipulate leaves; small greenish 

 flowers in axillary cymes, monoecious, dioecious or poly- 

 gamous; sepals and stamens 2-5; ovary superior, 1-celled 

 with 1 stigma; fruit an achene. 



1. Plants with stinging hairs; — leaves opposite; flowers axillary; sepals 



and stamens 4, ____--_- Urtica, Nettle 



U. urens. Stem stout, simple or branched. Waste places. Spring to Fall. 



1. Plants without stinging hairs. ---------2 



2. Flowers in dense clusters, without an involucre, on slender branches; 



sepals and stamens 3-5, ------- Boehmeria 



B. cylindrica. Leaves thin, ovate to lanceolate, acuminate, coarsely 

 serrate, bright green. Low ground. Summer and Fall. 

 2. Flowers in clustered cymes; involucres of 2-6 bracts; sepals and sta- 

 mens 3-4, ------- Parietaria, Pellilory 



P. Floridana (debilis). Slender annual, branched, with numerous, thin, ovate 

 leaves. 3-veined, alternate; bracts of involucre linear. Damp shaded sandy 

 soil. Summer. 



54. Cannabinaceae, Hemp Family. 



Pubescent herbs, mainly with opposite stipulate leaves; 

 flowers dioecious; staminate flowers in panicled racemes, 

 pistillate flowers in bracted spikes; sepals and stamens 5; 

 ovary 1-celled, styles and stigmas 2; fruit an achene. 



Stem twining; leaves 3-7 lobed or serrate; bracts imbricated, forming a 



membranous cone in the fruit, - Humulus 



H. Lupulis, Hop. Prostrate or climbing vine; leaves petioled. Cultivated or 

 escaped. Summer. 



55. Artocarpaceae (Moraceae), Mulberry Family. 



Trees or shrubs with milky juice, alternate leaves, 

 and deciduous stipules; flowers monoecious or dioecious 

 in spikes or heads, or on the inside of a closed receptacle; 

 perianth of the staminate flowers 3-4 lobed, with 3-4 sta- 

 mens inserted at its base; perianth of the pistillate flowers 

 3-5 lobed, finally enveloping the achene; ovary 1-2 celled, 

 styles and stigmas 1-2; fruit a syncarp or syconium. — Mem- 

 bers of this family are planted for ornament or fruit; they 

 bloom in late Spring or Summer. 



Morus alba, White Mulberry, a small tree with the staminate and pistillate 

 flowers in spikes; fruit subglobose or oval-oblong, white or pinkish. 



