. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 7o6 DIAPENSIACEAE. Vol. and broad; anther-cells pointed, divergent, obliquely 2-valved; staminodia none. Style slender; ovules numerous in the cells, anatropous. Seeds oblong-cubic, the testa close, reticulated. [Greek, by fives, alluding to the stamens and corolla-lobes.] Two species, the following typical one of wide distribution in the colder parts of t
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 7o6 DIAPENSIACEAE. Vol. and broad; anther-cells pointed, divergent, obliquely 2-valved; staminodia none. Style slender; ovules numerous in the cells, anatropous. Seeds oblong-cubic, the testa close, reticulated. [Greek, by fives, alluding to the stamens and corolla-lobes.] Two species, the following typical one of wide distribution in the colder parts of the northern hemisphere, the other Himalayan. I. Diapensia lapponica L. Diapensia. Fig. 3278. Diapensia lapponica L. Sp. PI. 141. 1753. Glabrous, forming dense cushion-like tufts; stems simple or branched, erect or ascending, i'-3' high. Leaves crowded below, thick, spatulate, sessile, obtuse or acutish, often curved, entire, 3"-6" long, about l" wide, the margins usually revolute; peduncles rather stout, becoming i'-2' long in fruit; sepals and bracts oval; corolla usually white, 3"-4" long, its tube about the length of the sepals and of its oval or oblong obtuse lobes; capsule ovoid, 2"-3" high. Summits of the Adirondack Mountains, and of the moun- tains of New England'; Mt. Albert, Quebec: Labrador and arctic America. Also in northern and alpine Europe and Asia. June-July. 2. PYXIDANTHERA Michx. Fl. Bor. Sm. i: 152. pi. 17. 1803. A creeping tufted much-branched evergreen shrub, with small narrow alternate imbri- cated leaves, and numerous white or pinkish sessile flowers, solitary at the ends of the branches. Calyx bracted at the base, the sepals oblong, ciliate. Corolla short-campanulate, S-lobcd, tardily deciduous. Stamens inserted' at the sinuses of the corolla; filaments broad and thick; anthers 2-celIed, the sacs globose, transversely 2-valved, the lower valve cuspi- date ; staminodia none. Style columnar. Seeds globose-oblong, amphitro
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
