PT  - JOURNAL ARTICLE
AU  - MACDOUGAL, D. T.
TI  - THE BOTANICAL SOCIETY OF AMERICA
AID  - 10.1126/science.16.399.294
DP  - 1902 Aug 22
TA  - Science
PG  - 294--296
VI  - 16
IP  - 399
4099  - http://science.sciencemag.org/content/16/399/294.short
4100  - http://science.sciencemag.org/content/16/399/294.full
SO  - Science1902 Aug 22; 16