. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. QUERCUS erect catkins with 4r-7-parted cal)^ and 4-12, usually 6, stamens; pistillate in l-many-tid. spikes in the axils of the young Ivs., rarely at the base of the axillary stami- nate catkins, each tiower consisting of an incompletely 3-celled ovary, surrounded by imbricate bracts: fr. a 1-seeded subglobose
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. QUERCUS erect catkins with 4r-7-parted cal)^ and 4-12, usually 6, stamens; pistillate in l-many-tid. spikes in the axils of the young Ivs., rarely at the base of the axillary stami- nate catkins, each tiower consisting of an incompletely 3-celled ovary, surrounded by imbricate bracts: fr. a 1-seeded subglobose to oblong nut, surrounded at the base or sometimes al- most inclosed by a cup-like involucre. The numei'ous species have been divided into different subgenera. All American spe- cies, except Q. densiflora, belong to the sub- genus Lepidobalanus {haJanos is Greek for "acorn"), which is characterized by slender, pendulous, starainate catkins, separate axil- larj' pistillate spikes and a cup consisting of bracts of various shape but not connate into zones. Q. densiflora belongs to Pasania, which has erect staminate catkins, some bear- ing pistillate fls. at their base, like the catkins of Castanea. Cyclobalanus and Cyclobala- nopsis have the scales of the cup connate into concentric rings; the inflorescence of the lirst being similar to that of Pasania, of the second to Lepidobalanus. Chlamydobalanus is much like Cyclobalanus, but the nut is wholly in- cluded by the ovate cup. Of Lithocarpus, with the nut partly connate with the cup, but otherwise like the last-named subgenus, no species is in cultivation. The oaks of the subgenus Lepidobalanus are divided into two sections, — Leucobalanus and Melanoba- lanus. In the former, comprising the White Oak tribe, the acorns mature the first year (Fig. 2039). In the latter, comprising the Black Oaks, the acorns mature the second year (Fig. 201:0). Besides the 300 species, about 40 hybrids have been recorded. The latest monogra
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