. The elements of botany for beginners and for schools. Botany. were all become if its axis were shortened; or an nmbel, if its pedicels shortened until the flowers became sessile. The head of the Button-bush is naked; but that of the Thistle, of the Dandelion, and the like, is surrounded by empty bracts, which form an Lirolucre. Two particular forms of the spike and the head have received particular names, namely, the Spadiv and the Catkin. 212. A Spadix is a fleshy spike or head, with small and often imperfect flowers, as in the Calla, Indian Turnip, (Fig. 206), Sweet Flag, etc. It is common
. The elements of botany for beginners and for schools. Botany. were all become if its axis were shortened; or an nmbel, if its pedicels shortened until the flowers became sessile. The head of the Button-bush is naked; but that of the Thistle, of the Dandelion, and the like, is surrounded by empty bracts, which form an Lirolucre. Two particular forms of the spike and the head have received particular names, namely, the Spadiv and the Catkin. 212. A Spadix is a fleshy spike or head, with small and often imperfect flowers, as in the Calla, Indian Turnip, (Fig. 206), Sweet Flag, etc. It is commonly surrounded or embraced by a peculiar enveloping leaf, called a Spatiie. 213. A Catkin, or Ament, is the name given to the scaly sort of spike of the Birch (Fig. 207) and Alder, the Willow and Poplar, and one sort of flower-clusters of the Oak, Hickory, and the like, — the so-called Amen- taceous trees. 214. Compound flower-clusters of these kinds are not uncommon. When the stalks which in the sim- ple umbel are the pedicels of single flowers themselves branch into an umbel, a Compound Umbel is formed. Fig. 205. Head of the Bnttoii-bush (CephalaTithus). Fig. 206. Spadix and spatlie of the Indian Turuip; the latter cut through below. Fig. 207. Catkin, or Anient, of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gray, Asa, 1810-1888. New York : American Book Company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
