. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. cement ofthe flower. 267. This enclosing or flask-like body in the carices orsedges is technically knownas a perigynium (around thepistil), and it probably rep- ??; \,Fio. 223 Spikes of a carex. PABTICULAB TYPES OF FLOWERS (SEDGES) 233 resents a bractlet which has rolled itself into aflask (or possibly two conjoined bracts). The scalewhich subtends the perigynium, therefore, must bea bract at the base of a very short branch, andthis branch bears the perigynium and the flowers of ca
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. cement ofthe flower. 267. This enclosing or flask-like body in the carices orsedges is technically knownas a perigynium (around thepistil), and it probably rep- ??; \,Fio. 223 Spikes of a carex. PABTICULAB TYPES OF FLOWERS (SEDGES) 233 resents a bractlet which has rolled itself into aflask (or possibly two conjoined bracts). The scalewhich subtends the perigynium, therefore, must bea bract at the base of a very short branch, andthis branch bears the perigynium and the flowers of carexare interpreted to beachlamydeous ; and ifthe ultimate branchletin the inflorescence ofa grass is called aspikelet, a similar termshould be applied tothe perigynium and itsflower if we followstrict homologies. 268. We are againimpressed with the fact that the mor-phology of a flower or a part cannotbe inferred from mere external conform-ation, for appearances are apt to bedeceitful; and we see how important it is togive careful attention to every secondary and in-cidental part or
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
