. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1322 PHYSIANTHUS PHYSIOLOGY 5 scales attached to the middle of the tube or lower, flat and erect or convex and appressed to the staminal tube: seeds long, bearded. Schub^rtiaandPhysianthus should perhaps be considered as subgenera, the former contain- ing the hairy plants with somewhat funnel-shaped fls.; the l
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1322 PHYSIANTHUS PHYSIOLOGY 5 scales attached to the middle of the tube or lower, flat and erect or convex and appressed to the staminal tube: seeds long, bearded. Schub^rtiaandPhysianthus should perhaps be considered as subgenera, the former contain- ing the hairy plants with somewhat funnel-shaped fls.; the latter nearly glabrous plants with somewhat salver- shaped fls. A. Fls. ^-^Vi in. across, umbellate, Aratijia grav^olens, Masters [Physidnthus graveolens, Hort. P. aiiricomus, R. Grab. ScluiMrtia graveolens, Lindl. S. grandiflora. Mart.). Densely covered with harsh, spreading yellow hairs: Ivs. S^K x 2-2^ in., obovate, acuminate, greatly narrowed and cordate at the base, liairv on both sides: fls. funnel-shaped, 1. e., swelled at the throat. 3891. 32:21. 3:3G9. III. 4:271. Gn. 32:G07. 13:695. AA. Pis. 1 in. across, cyniose. seric6fera, Brot. [, G. Don. A. seri- cifera, Ind. Kew. Araujia sericofera, Mottet. Physi- dnthus dlhens. Mart.). Nearly glabrous: Ivs. 3 x \% in., obiong-acuminate, wide and square at the base, minutely pubescent below: fls. salver-shaped, i. e., not swelled at the throat, pale rose in the bud and only faintly odorous. S. Brazil. 3201. 21: 1759. til. 2:653; 20:523. 1857, p. 89; 1883, p. 488. Gn. 24, p. 409; 34. p. 397. Mn. 6, p. plant as above described is the Physianthus albens or Araujia albens of the t^'^^e- G. W. Oliver and W. M. PHYSIC NUT, FRENCH. Jatropha Curcas. PHYSIOLOGY OF PLANTS. What Plant Physiology Means. —T\iQ very fact of cultivating plants presup- poses some knowledge of how the plant lives, i. e., of plant physiology. The pristine cultivator sought to imita
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