NETTLE FAMILY 33 



side of tlie styles, fruits or carpels 5-9, 1-seeded, beakless, mostly closed ; 

 flowers in spike-like racemes; leaves lobed or divided; perennial. 



1. Flowers white or creamy s Candida 



2. Flowers rose or rose-purple S". neo-mexicdna 



Sphaeralcea St. Hilaire 1825 Globe-Mallow 

 (Gr. sphaira, ball, alkea, mallow) 



Sepals 5, united, with 3 leaf-like bracts below, petals 5, white, purple 

 or red, anthers at the top of the stamen column, ovary with 5-many cavities, 

 stigmas at the tip of the style branches, fruits or carpels 5-many, splitting; 

 Mowers in spike-like racemes ; leaves entire to lobed, often gray-silvery ; 

 perennial. 



1. Leaves large, deeply lobed, maple-like; petals 



white or purplish, 2-4 cm. long S. rivuldris 



2. Leaves smaller, entire or with shallow round 



lobes ; petals rose-purple to red, 1-2 cm. long 



a. Leaves oblong to lanceolate S. cuspiddta 



b. Leaves ovoid or rounded, heart-shaped at base S. niarginata 



URTICACEAE NETTLE FAMILY 



Sepals 2-9, often united, petals none, stamens 2-9, ovary 1-celled, 

 styles 1-2, fruit an achene or a nut-like drupe; flowers often imperfect, the 

 stamens and pistils in different flowers ; herbs, or trees with alternate or 

 opposite simple leaves. 



1. Trees Celtis 



2. Herbs 



a. Climbers, with opposite 3-7-lobed leaves Humulus 



b. Erect herbs, with entire or toothed leaves 



(1) Low annuals, smooth; leaves entire Parietaria 



(2) Perennials with stinging hairs; leaves 



toothed Urtica 



Celtis Linne 1753 Hackberry 



(Lat. celtis, lotus tree) 



PI. 4, fig. 4. 



Sepals 4-6, sometimes united, petals none, stamens 4-6, ovary 1-celled, 

 stigmas 2, fruit a drupe, the outer coat pulpy, the inner stony ; leaves alter- 

 nate in 2 rows, simple, serrate or entire ; stamen flowers in a raceme, pistil 

 flowers solitary ; trees. 



