Colorado Wkkd Selds 
3. Buffalo Buk, Beaked Night- 
shade {Solanum rostratum Duval.) 
(Fig. 126).— Seeds dull black, flattened, 
irregular, mostly ovate in outline, sur- 
faces deeply wrinkled and distinctly 
pitted ; seeds 1.5-2. 5 mm. across each 
face, .6-. 8 mm. thick. 
29. FIGWEED FAMILY 
( Scroph iilariacecie ) 
Fruit a capsule, rarely berry-like; seeds numerous, marked 
with a netw'ork of lines; ribbed transversely or with fine lines 
throughout the length of the seed or sometimes smooth; endosperm 
fleshy; embryo small, curved or straight. 
Key to Genera 
Seeds mostly circular in outline l..Linaria 
Seeds not circular in outline — angled 2..Verhascum 
1. ToadHax 
{Linaria {Tourn.) L.) 
Capsule thin, short, opening by 3 pores below and near the top; seeds 
numerous, wingless or winged, wrinkled or rough, mostly flattened but some- 
times angled. 
Butter-and-Eggs, Wild Snapdragon 
{Linaria linaria (L.) Karst., Linaria vul- 
garis Mill.) (Fig. 127). — Seeds black, the 
wide notched wing buckthorn-brown to 
mummy-brown in color ; seeds flattened, each 
face marked with numerous, minute rounded 
projections; wings marked with minute 
radiating lines nearly touching each other 
and almost parallel ; seeds, including wing, 
1.5-2 mm. across each face. 
2. Mullein 
{Vcrhascum {Tourn.) L.) 
Capsule spherical or oblong in shape ; 
seeds roughened, wingless. 
Great Mullein, Common Mullein 
{Vcrhascum thapsus L.) (Fig. 128). — 
Seeds olive-brown in Color, truncate and 
broader at one end and partially truncate 
or rounded at the other, marked with 
grooves as long as the seed find brokenly 
grooved, pitted or ridged transversely; 
seeds circular in cross-section, narrower 
at the tip, .5-.8 mm. long, .3-.5 mm. wide, 
in the widest part. 
Fig. 128. Great Mul- 
lein (Verbascum thap- 
sus). X 28. 
Fig. 127. Butter- 
and-eggs (Linaria 
linaria). x 11. 
Fig. 126. Buffalo Bur 
(Solanum rostratum). Top 
view (left), edge view 
