82 
Colorado Agricultural Collegk 
2. Red-seeded Dandelion {Tarax- 
acum crythrospcrmum Andr::., Leonto- 
don crythrospcrmum {Andrz.) Eichn.) 
(Fig. 163). — Seeds claret-brown in 
color, 8-12 ribbed, the ribs roughened 
with longer, more distinct spines at 
the apex than seeds of T. officinale ; 
the remainder of the seed is usually 
roughened with short, hard processes 
gradually becoming smaller and extend- 
ing to the base; seeds 2.5-3 mm. long, 
.5-.8 mm. wide, nearly circular in 
cross-section at apex, irregularly 4-sided 
at the base. 
Fig. 163. Red- 
seeded Dandelion 
(Taraxacum 
erythrospermum) . 
X 12. 
GLOSSARY 
.velieue, a small, dry, and 1-celled, 1-seeded, indehiscent fruit. 
Acuminate, taper-pointed. 
Acute, sharp-pointed but less so than acuminate. 
Adnate, united; grown to. 
Albumen, the substance, usually nutritive, surrounding the embryo of the seed. 
Angled, having an angle or angles. 
Annular, in the form of a ring. 
Apex, the tip, point or summit of anything. 
Apiculate, with a minute point, or ending in a short pointed tip. 
Articulated, joined; having a node or joint. 
Axil, the angle formed by a leaf or branch with the stem. 
Awn, a bristle-like, or beard-like, appendage. 
Barbed, with rigid points or short bristles, usually reflexed like the back of 
a fish-hook. 
Beaked, ending in a beak or prolonged tip. 
Bidentate, having two teeth. 
Bifid, two-cleft. 
Bloom, a surface coating. 
Bract, a leaf, usually small, subtending a flower or flower cluster. 
Calyx, the outer of two series of floral leaves. 
Campanulate, bell-shaped. 
Capsule, a dry, dehiscent fruit, composed of more than one carpel. 
Carpel, a simple pistil, or one member of a compound pistil. 
Caryopsis, the grain of grasses. A seed-like fruit with a thin pericarp adnate 
to the contained seed. 
Circumseissile, transversely dehiscent, the top falling away as a lid. 
Compressed, flattened, especially laterally. 
Conduplicate, folded together lengthwise. 
Connate, united; used especially of like structures joined from the start. 
Cordate, heart-shaped. 
Coriaceous, leathery in texture. 
Crescent, shaped like the moon in its first quarter. 
Crested, bearing an elevated appendage like a crest. 
Cross-section, a section at right angles to the longer axis, 
Crustaceous, hard and brittle in texture; crust-like. 
Cuneate, wedge-shaped. 
