. The elements of botany for beginners and for schools. Plants. 3S4), and the like, the achenium as it matures tapers upwards into a slender beak, like a stalk to the pappus. 361. A Cremocarp (Fig. 385), a name given to the fruit of Umbelli- ferse, consists as it were of a pair of akenes united com- pletely iu the blossom, but splitting apart when ripe into the two closed carpels. Each of these is a Meri- carp or Hemicarp, names seldom used. 362. A Utricle is the same as an akene, but with a thin and bladdery loose pericarp; like that of the Goosefoot or Pigweed (Fig. 3S6). When ripe it may- b
. The elements of botany for beginners and for schools. Plants. 3S4), and the like, the achenium as it matures tapers upwards into a slender beak, like a stalk to the pappus. 361. A Cremocarp (Fig. 385), a name given to the fruit of Umbelli- ferse, consists as it were of a pair of akenes united com- pletely iu the blossom, but splitting apart when ripe into the two closed carpels. Each of these is a Meri- carp or Hemicarp, names seldom used. 362. A Utricle is the same as an akene, but with a thin and bladdery loose pericarp; like that of the Goosefoot or Pigweed (Fig. 3S6). When ripe it may- burst open irregularly to discharge the seed ; or it may open by a circular line all round, the upper part fall- ing off like a lid ; as in the Amaranth (Tig. 387). 363. A Caryopsis, or Grain, is like an akene with the seed adhering to the thin pericarp throughout, so that fruit and seed are incorporated into one body; as in wheat, Indian corn, and other kinds of grain. 36 1. A Nut is a dry and indehiscent fruit, commonly one-celled and one- 886. Pio. .°«7P. Akene of Mayweed (no pappus). 880. That of Succory (its pappus a shallow cup). 381. Of Sunflower (pappus f two deciduous scales). 382. Of Sneezeweed (Helenium), with its pappus of five scales. 383. Of Sow-Thistle, with its pappus of delicate downy hair-. 384. - arating at maturity from a Blender axis or carpophores. I'ii;. 386. Utricle of the common Pigweed (Cheaopodium album). Fig. 3t<7. Utricle (pyxis) t' Amaranth, opening all round (drcumscissile).. 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, booksubjectplants, bookyear1887
