(a) 



Oeder XLIV. VITACE^. Grapevines. 



S/u-ubs climbinii: by tendrils ; flowers small, regular, clustered ; 



cali/x miuute, with scarcely any limb ; petals valvate, caducous ;' 



stamens opposite to the petals, ovary 2-celled, beriy 4-seeded. ' 



Fio- 4?)fi 

 VITIS. Grapevines. 



§ True ViTis. Petals cohering at top and falling off without expanding. (Tig. 43G'.) 

 § Ci!«sus. Petals free, expanding before falling. Tendrils coiling. . . .Nos. 6, 7, 8 

 § Ampelopsis. Petals free, expanding. Tendrils with an adhesive foot. . . . No! 9 

 a Leaves beneath clothed with a whitish or rusty avooI. . . .Nos. 1, 2. 3 

 a Leaves glabrous except the veins, and green both sides .... Nos. 4, 5, 10 



1 V. labrus'ca. Fox G., Catawba, Isabella. Berries large, pale-green, or amber. 



2 V. ffistiva'lis. Summer G., Clinton G. Berries small, deep-bine. Clusters slender. 



3 V. Carib^a. Caribean G. Berries medium size (X inch). Downy all over. Florida. 



4 V. cordifo'lia. Frost G. Clusters large, loose; berries small, blackish, in Nov. 



5 V. vulpi'na. Mvscadine. Clusters small ; berries large. Leaves shining. S. 



6 V. indivi'sa. Leaves simple, angular or entire ; berry small (2"). Swamps. S. 



7 V, bipinna'ta. Leaves bipinuate, cut-serrate. Tendrils none, or few. Berries black. 



8 V. inci'sa. Leaves 3-foliate, thick, lobed • berry 1-seeded. Florida to La. 



9 V. quinquifo'lia. Virginia Creeper. Leaves digitate, Avith 5 leaflets. 

 10 V. vinife'ra. European Wine-grape. 

 Leaves not shining. Berries large, 

 variable in form, size, and color. '^f^<C^ '^^' ^ A^ <i^ 



Order XLY. POLYGALA- 

 CE^. The Milkworts. 



Plants without stipules, bearing very 



irregular ^owe^-^; 

 stamens 4-8, diadelphous; 

 anthers opening at the top, 1 -celled ; 

 fruit a flattened, 2-celled, 2-seeded 



capsule, free from the calyx. 



Fig. 437. Polygala polygama: a, rhe radical 

 flowers; 8, P. paucifolia; / the crest on tlie 

 lower petal; 9, the stamens in 2 sets, and the 

 style seen beneatli the hooded lower petal. 



Fig. 440. The ovary and the style: 1, seed of " 

 P. sanguinea, with its 2-lobed caruncle; 2, seed 

 of P. Nuttallii. 



POLYG'ALA. Milkwort. 

 Sepals 5, persistent, 2 of them 

 Cwings) wing-shaped and colored. 



