188 ROSE ORDER 



(x) Heads globose, pink to white; calyx 



and leaves smooth T. hybridum; alsike 



(y) Reads usually oblong to elongate, 



red; calyx and leaves hairy T. incarndtum; crim- 



son closer 

 y. Native ; heads globose to oblong, yellow- 

 ish, white or purplish; calyx usually 

 long-hairy ; leaflets lanceolate or ov- 

 ate, hairy to smooth T. longipes 



Vicia Linne 1753 Vetch 



(The Latin name) 



PL 27, fig. 5. 



Sepals 5, united, the 2 upper somewhat longer, petals 5, blue, violet or 

 yellow, rarely white, wings somewhat adherent to the keel, stamens 10, 9 or 

 sometimes all united, style with a tuft of hairs at the tip, pod flat, splitting 

 by 2 valves ; flowers usually in axillary racemes ; leaves alternate, pinnate, 

 tendril-bearing ; annual or perennial vines. 



1, Flowers 10-25 mm. long, 3-40 in a cluster, vari- 



ously blue-purple ; leaflets linear to oblong or 

 ovoid, smooth or hairy, round or truncate at 

 tips ; stipules various V. americdna 



2. Flowers 5-6 mm. long, 1-2 in a cluster, yellowish, 



with purple tip ; leaflets linear to oblong V. product a 



CRASSULACEAE STONECROP FAMILY 



Sepals 4-5, separate or united, free from the ovary, petals 4-5, distinct 

 or slightly united at the base, rarely wanting, stamens 4-10, pistils 4-5, dis- 

 tinct or united below, ovules numerous in 2 rows, follicles 1-celled, splitting ; 

 flowers regular, usually in cymes, clusters often head-like ; herbs with 

 simple fleshy leaves. 



1. Stamens 8-10; flowers clustered; leaves fleshy 



a. Flowers pink to purple or dark red 



(1) Flowers pink, rarely white, axillary in 



racemes Clementsia 



(2) Flowers purple to red-brown, terminal Rhodiola 



b. Flowers yellow, in spreading 1 -sided racemes Sedum 



2. Stamens 3-5 ; leaves hardly fleshy Tillaeastrum 



