Pharmaceutical Botany: a Text-Book for Students of Pharmacy And Science
Pharmaceutical Botany: a Text-Book for Students of Pharmacy And Science
Heber Wilkinson Youngken
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Fruit a samara. Seeds green, exalbuminous with coiled or folded embryo and long thin cotyledons. Unofficial drug Acer Spicattim Part used Bark Botanical orign Acer spicatum Habitat United States XVII. Order Rhamnales. — Rhamnacecc or Buckthorn Family. — Shrubs or low trees usually of branching or spreading habit. Branches either cylindric or long green or hardened, checked back and spinescent, occasionally, especially flowering branches develop- ing tendrils for support. Leaves simple, usually ...alternate. Flowers hermaphrodite or more or less diclinous, pentamerous to tetramer- ous, greenish to greenish-yellow to yellowish- white; sepals five to four; petals five to four alternating with sepals; stamens five oppo- site the petals, perigynous; pistil either free in center of receptacular cup or more or less fused with it and so semi-inferior, ovary t)^ically three-celled becoming rarely four-celled with two to one atropous ovules in each cavity. Fruit of three indehiscent cocci, each en- closing a single albuminous seed with straight embryo imbedded in albumen.
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