44 
Colorado Agricultural College 
2. Bladder Campion. {Silene vulgaris 
(Mocnch.) Garcke) (Fig. 64). — Seeds deep 
mouse-gray to mouse-gray in color, each face 
with 3-4 rows of regular, concentric rows of 
prominent, black tipped projections; seeds 
reniform to nearly circular in outline, flat- 
tened, .t'-l mm. across each face. 
3. Night-flowebing Catchfly {Silene 
noctiflora L.) (Fig. 65).— Seeds slightly 
lighter gray in color than vulgaris, each 
face with T-IO irregular, concentric rows of 
black tipped projections, almost flat (not 
prominent) ; seeds reniform to nearly cir- 
cular in outline, flattened, slightly larger 
than /S. vulgaris, 1-1.2 mm. across each face. 
4. Campion, White Cockle 
{Lychnis {Tourn.) L.) 
8-10 valves at the top; other characters nearly 
White Cockle {Lychnis alba Mill.) (Fig. 
00) _Seeds neutral-gray in color, projections and 
markings similar to Silene noctiflora, also similar 
in shape, but a trifle larger ; as distinguished from 
Silene noctiflora, Lychnis alba has a prominent 
projection nearly surrounding the hilum, whereas 
the hilum of Silene noctiflora appears between two 
distinct knob-like projections; seeds 1-1.2 mm. 
ac ross each face. 
5 . Corn Cockle 
{Agrostemma L.) 
C'apsule 1-celled ; seeds numerous, black, deeply 
grooved, curved so that the base and apex are 
brought nearly together. 
Corn Cockle {Agrostemma githago L.) (Fig. 
67). — Seeds seal-brown to black in color, wedge- 
shaped to triangulai-, the top and bottom faces 
with 3-5 rows of regular, concentric, sharp projec-- 
tions, which become very small and indistinct near 
the hilum; the third face or edge c)i)posite the hilum 
is very thick and ridged with 7-10 rings of shari) 
projections ; seeds 2-4 nun. long, 2-2.5 mm. thick. 
icig. 67. Corn Cocklo 
(Agrostemma githago). 
X 10, 
Capsule opening by 
identical with Silene. 
Fig. 66. White 
Cockle (Lychnis 
alba). A. Top view. 
B. Edge view, x 12. 
Fig. 65. Night- 
flowering Catclifly 
(Silene noctiflora). 
A. Top view. B. 
Edge view, x J \ 
Fig. 64. Bladder 
Campion (Silene vul- 
garis). A. Top view. 
13 . Edge view, x 10. 
