. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. 4 i^ ^; • ^ ,1 •> ' 3. Single plant of Sarracenia purpurea var. stolonifera (greatly reduced) in - late May, showing 7 new leaves of the current year surmounting 7 still fresh or slightly withered leaves of previous season, and a few withered remnants of still older leaves. Widest diameter of plant from pitcher tip to pitcher tip 29 ins. To face page 5.] 4 4 and the tint of the tentacular hairs in leaves of the native sundews vary in the same way. When seen at this time (August) the plants showed thousands of strong, up
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. 4 i^ ^; • ^ ,1 •> ' 3. Single plant of Sarracenia purpurea var. stolonifera (greatly reduced) in - late May, showing 7 new leaves of the current year surmounting 7 still fresh or slightly withered leaves of previous season, and a few withered remnants of still older leaves. Widest diameter of plant from pitcher tip to pitcher tip 29 ins. To face page 5.] 4 4 and the tint of the tentacular hairs in leaves of the native sundews vary in the same way. When seen at this time (August) the plants showed thousands of strong, upright fruiting stalks, rising conspicuously above the dense masses of pitchers which made up each huge patch. The stalks varied in height from 14 to 19 ins. and in thickness from J to J in. Occasionally withered remnants of the petals could be traced, but the five large spreading and persistent green to purplish sepals were conspicuous, surrounding the large maturing fruit. While not a few of the fruits were maturing normally or had recently burst their carpels, many showed the serious havoc caused by the depredations of the larval stage of Exyra Rolandiana. This small moth attacks the carpels and soft young seeds, feeding on them and so reducing their tissues to a pulpy condition. They unquestionably cause great destruction to, and reduction of, the total quantity of seeds matured. This subject has been very thoroughly investigated by Dr. Frank M. Jones in a series of valuable papers* which have been published during the past few years. At irregularly succeeding periods, the senior author conducted various excursions with his students and with members of scientific societies to the region. He therefore had opportunities for studying the area and its local flora. Several of these observers have secured photographs illustrating both the plants and their surroundings. Special mention should be made of the views secured by Dr. Herbert Kribs, by Dr. Walter Steckbeck the junior
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Keywords: ., bookcentury1900, bookpublisherphiladelphiasn, booksubjectbotany
