PT  - JOURNAL ARTICLE
AU  - Dana, James D.
TI  - Asa Gray
AID  - 10.2475/ajs.s3-35.207.181
DP  - 1888 Mar 01
TA  - American Journal of Science
PG  - 181--203
VI  - s3-35
IP  - 207
4099  - http://www.ajsonline.org/content/s3-35/207/181.short
4100  - http://www.ajsonline.org/content/s3-35/207/181.full
SO  - Am J Sci1888 Mar 01; s3-35