. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. likely to result in invasion by fungi and death of the plant, so personal collection of it is preferable to pur- chase from dealers. There is, how- ever, little use trying to cultivate it unless strongly acid sandy peat soil is available, and the area is free from parasitic fungi, slugs and cut- worms. Purple Five-leaf Orchid, Fogonia (Isotria) verticillata (Willd.) Nutt. The root system of this species, like that of the Sweet Crest-Orchid, consists of an extensive series of rootstocks, by which it spreads into large colon
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. likely to result in invasion by fungi and death of the plant, so personal collection of it is preferable to pur- chase from dealers. There is, how- ever, little use trying to cultivate it unless strongly acid sandy peat soil is available, and the area is free from parasitic fungi, slugs and cut- worms. Purple Five-leaf Orchid, Fogonia (Isotria) verticillata (Willd.) Nutt. The root system of this species, like that of the Sweet Crest-Orchid, consists of an extensive series of rootstocks, by which it spreads into large colonies. Its favored habitat, however, is dry upland peat under pine or oak trees. It occurs prac- tically throughout the eastern states, although becoming rare northward. Attempts to cultivate it are rarely successful, owing to the difficulty of keeping the soil sufficiently acid, and of preventing fungi from over- whelming Edgar T. Wherry Pogonia (Isotria) affinis Virginia, late May, 1923 Green Five-leaf Orchid, Pogonia (Isotria) affinis Austin. This species has been collected at only a very few localities from North Carolina to Maine, but is probably more common than sup- posed, and is overlooked. For it has one of the longest resting pe- riods of any of our eastern Orchids, during which it remains dormant underground and sends up no leaves or flowering stalk at all. Woods where it has occurred in abundance in one favorable season have been watched for at least ten years with- out its reappearing, and no one can tell how much longer a wait will be necessary. Unlike its relative, just discussed, it does not spread by rootstocks, the crown being sur- rounded by a group of long radiat- ing slightly fleshy roots. There is no record of its successful cultiva- tion. Grass-pink Orchid, Calopogon put- chcllus (Sw.) , or Limodorum tuberosum L. In early summer many moist grassy pinelands throughout the eastern United States and Canada are gay with this Orchid's brilliant magenta
Size: 1274px × 1960px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublisherphiladelphiasn, booksubjectbotany
