229a. Stamens 6 3b, in =BERBERIDACEAE=, p. 40. 229b. Stamens numerous =RANUNCULACEAE=, p. 35. [1] In most flowers the corolla is the conspicuous portion of the perianth, and is composed of united or separate petals, as the case may be. In some flowers the corolla is absent, and the calyx is the conspicuous portion. THE PLANTS OF MICHIGAN PINACEAE, the Pine Family Trees or shrubs, usually evergreen, with needle-like or scale-like leaves; fruit a cone or berry. 1a. Leaves in clusters of 2-5 --2. 1b. Leaves mostly in clusters of 10 or more, on short lateral wart-like branches, deciduous each autumn =Tamarack, Larix laricina.= 1c. Leaves not in clusters --4. 2a. Leaves in clusters of 5 =White Pine, Pinus strobus.= 2b. Leaves in clusters of 2 or 3 --3. 3a. Leaves 8-15 cm. long =Norway Pine, Pinus resinosa.= 3b. Leaves 2-4 cm. long =Jack Pine, Pinus banksiana.= 4a. Leaves alternate or scattered --5. 4b. Leaves opposite or whorled --8. 5a. Leaves four-sided --6. 5b. Leaves flattened --7. 6a. Leaves 6-12 mm. long =Black Spruce, Picea mariana.= 6b. Leaves 15-25 mm. long =White Spruce, Picea canadensis.= 7a. Leaves short-stalked, 15 mm. long or less =Hemlock, Tsuga canadensis.= 7b. Leaves sessile, 15-30 mm. long =Balsam, Abies balsamea.= 8a. Leafy twigs soft and flattened =White Cedar, Thuja occidentalis.= 8b. Leafy twigs not distinctly flattened --9. 9a. Leaves opposite --10. 9b. Leaves in whorls of three --11. 10a. Erect shrub or tree =Red Cedar, Juniperus virginiana.= 10b. Prostrate or spreading shrub =Creeping Cedar, Juniperus horizontalis.= 11a. Erect shrub or small tree =Juniper, Juniperus communis.= 11b. Spreading or ascending shrub, growing in dense mats =Low Juniper, Juniperus communis var. depressa.= TAXACEAE, the Yew Family Shrubs, with needle-like evergreen leaves; fruit red and berry-like. One species in Michigan; straggling shrub 1-3 m. high =Ground Hemlock, Taxus canadensis.= TYPHACEAE, the Cat-tail Family Erect plants 1-2 m. high, with linear leaves and terminal spikes of brown flowers, appearing in summer. 1a. Staminate and pistillate portions of the flower-spike contiguous, the latter 2.5 cm. in diameter =Common Cat-tail, Typha latifolia.= 1b. Staminate and pistillate portions of the spike separated, the latter 2 cm. or less in diameter =Narrow-leaved Cat-tail, Typha angustifolia.= SPARGANIACEAE, the Bur-reed Family Marsh plants with linear leaves and spherical heads of inconspicuous greenish flowers, appearing in summer.