Protandry of Pastinaca

1882 Botanical Gazette  
BOTANICAL GAZETTE. riuml on either side of the Atlantic. At best we have had yolung, succulent growths-usually taken with the mature fruit. Mr. Suksdorf's specimens give us the full grown-if not the old and rigid leaves, and they show a decided approach to so called Coulteri! It r0mains to consider the thicker and more densely villous aments, and the stout, furrowed, tomentose twigs of Coulteri; but here again Mr. Suksdorf's specimens are intermediate in character, and we need only concede a
more » ... d only concede a degree of variation paralleled by our famliar S. humilis to warrant the uniting of the two extremes. I broach, with much hesitancy, a further consider.-.ion of the place of S. Sitchensis in a methodical arrangement of species. Professor Andersson grouped it with sericea andpetiolaris as a peculiarly American type, at the same time arranging Coulteri with lasiolepis as manifestly representing the European S. daphnooides, suggesting however a doubtful affinity to S. discolor (eriocephala) and S. lanata through the intermediation of Hookeriana and speciosa. Remembering the scanty material before the distinguished Salicologist these conjectures appear sufficiently plausible; but Coulteri, must be most nearly allied to-if not identical with-Sitchensis and it is clear that Sitchensis is distinguished from the species with which it has been heretofore associated not only by the single stamen but also by the long, narrowly cylindrical fertile aments erect then spreading, subsessile capsules with manifest style-short petioled leaves with entire revolute margins, etc. May it not be that Sitchensis represents in America the European Synandrce; a group so commonly distributed throughout Europe and Asia that its entire omission from our flora has always appeared remarkable, and furthermore one which if found at all with us would most likely appear on the Pacific slope where already S. Breweri gives us our only species of the Vimlinales. Is the coalescence of the two stamens in purpurea carried a step further to the extreme of suppressing entirely one of the members in Sitchensis? A peculiar American type it may still be, "pulcherrima et distinctissima species" it most certainly is, but its place seems to be with or near the Synandrce rather than among any of the recognized groups of the Diandra-a.-M. S. BEBB.
doi:10.1086/325565 fatcat:2twpoab2jff67gswgsxpcdf4da