CHELONE GLABRA. 
TURTLE-HEAD. 
NATURAL ORDER, SCROPHULARIACE-E, 
CHELONE GLABRA, Linnzeus.—A foot or two feet (or in Illinois six to seven fect) high; leaves 
from narrowly to rather broadly lanceolate (‘uur to five inches long, four to twelve lines 
wide), gradually acuminate, serrate with sharp appressed teeth, narrowed at the base into 
a very short petiole: bracts not ciliate: corolla white, or barely tinged with rose, an inch 
long. (Gray’s Syxoptical Flora of North America. See also Gray’s Manual of the 
Botany of the Northern United States, Chapman’s flora of the Southern United States, 
and Wood’s Class-Book of Botany.) 
HIS very pretty wild flower will interest the collector, not 
Lees only because it is pretty, but also because it will furnish 
ratedal for good botanical lessons, especially in that part of 
botany which deals with the evolution of form and the relation 
which plants bear to one another in systems of classification. 
Taking this latter topic first, it may be well to assume that a large 
number of our readers know what is a Feztstemon, for they form 
not only a very extensive genus, but some one or more of them 
are found in most parts of the territory covered by our work— 
the United States. Besides this, the /ezéstemon has been 
improved by skilful florists, and thus has become a very popular 
garden plant, and afforded many besides those who go out to 
gather wild flowers, the opportunity of being acquainted with 
them. The natural order to which the Prréstemon, Chelone, 
and many other American plants belong, Scrophulariacee, has 
usually two pairs of didynamous or twin stamens, one pair 
generally above the other ; but occasionally some of the number 
are abortive and only two stamens appear. On the other hand, 
there is at times a tendency to add to the normal number four, 
by the introduction of a fifth stamen. In /2zéstemon this fifth 
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