. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 13. Botany; Botany. It « American Fkrx Journal VoLUMK 20, Tlatf. IT) i:]() Amehk'An Fehn Journal soutli. At one point were seen several plants of Pterin cretka, presnniably an escape from a greenhonse of some nearby estate. Alongside of one clump of this snb- tr-opical species there was found most unexpectedly a small plant of the decidedly northern *'narrow-leaf spleenwort'' or glade-fern, Athyrium pycnocarpon. The southernmost station of this fern previously known is In West Felicia
. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 13. Botany; Botany. It « American Fkrx Journal VoLUMK 20, Tlatf. IT) i:]() Amehk'An Fehn Journal soutli. At one point were seen several plants of Pterin cretka, presnniably an escape from a greenhonse of some nearby estate. Alongside of one clump of this snb- tr-opical species there was found most unexpectedly a small plant of the decidedly northern *'narrow-leaf spleenwort'' or glade-fern, Athyrium pycnocarpon. The southernmost station of this fern previously known is In West Feliciana Parish, 75 miles away; its ability to sur- vive at this still more southern point is due to the j-avine being very narrow, completely shaded from the sun, and well cooled by air currents. A photograph showing the two ferns of such divergent geographic rela- tionship growing side-by-side is reproduced as Plate 15, figure 2. Trkmiomaxks pktersii at Saratoga, Mississhmm.—On Septcmlx'r 5, l!);j(), 1 drove to Saratoga stati f 4. -*? Fio. 1 (UPPKR).—NorthKRN liKK( ii kirn at ns soitiif-rnmost KNOWN station. DRY FALLS, >rA( ON CO., NoRTII CAROLINA. Fig. 2 (lowkr).—Tiik srn troi'K al Ptkris < a cRowiNi; hk .SIDK TIIF, (JlADE , AtIIVRUM I'YCNOCARI'ON, ON AvKRV Island. Loi isiana. INTENTIONAL SECOND EXPOSURE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia : [s. n. ]
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Keywords: ., bookcentury1900, bookpublisherphiladelphiasn, booksubjectbotany
