Text-book of botany, morphological and physiological . amalgamate in the course 1 Magnus, Zur Morphologic der Gattung Naias (Bot. Zeit. 1869, p. 772).—Rohrbach, UeberTypha (in Sitzungsber. des Gesells. naturf. Freunde Berlin Nov. 16, i869).-Hanstein u. Schmitz,Ueber Entwickelung der Piperaceenbliithen (Bot. Zeit. 1870, p. 38). 2 I am unable to understand why Magnus calls the coating of the ovary perianth. 496 PHANEROGAMS. of their growth, their zone of insertion becoming elevated as a ring. Since thewall of the ovary does not in any of these cases forms placentae from the number andposition of
Text-book of botany, morphological and physiological . amalgamate in the course 1 Magnus, Zur Morphologic der Gattung Naias (Bot. Zeit. 1869, p. 772).—Rohrbach, UeberTypha (in Sitzungsber. des Gesells. naturf. Freunde Berlin Nov. 16, i869).-Hanstein u. Schmitz,Ueber Entwickelung der Piperaceenbliithen (Bot. Zeit. 1870, p. 38). 2 I am unable to understand why Magnus calls the coating of the ovary perianth. 496 PHANEROGAMS. of their growth, their zone of insertion becoming elevated as a ring. Since thewall of the ovary does not in any of these cases forms placentae from the number andposition of which the number and position of the carpels might otherwise be moreeasily determined, we are thrown back on the direct observation of the first stagesof development and on the numbers of the styles and stigmas. Failing this, thesolution of the question depends on morphological relationships which are still byno means made out with sufficient certainty, notwithstanding the numerous re-searches which have been made on the development of the
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
