THE MAXIMUM HEIGHT OF PLANTS III.
John H. Schaffner.
During the past summer, the plants mentioned below were measured by the writer in northern Kansas. A number of species grew far beyond the height mentioned in our manuals, although there was a very severe drought the entire summer. The height given probably approaches the maximum in but few cases and a better growing season might produce a very noticeable increase in size. The measurements are given in comparison with those of Britton and Brown’s Flora.
| Britton. | Measured. | |
|---|---|---|
| Polygonum lapathifolium L. | 3 ft. | 8 ft. |
| Polygonum camporum Meisn. | 3 | 6¼ |
| Froelichia floridiana (Nutt.) Moq. | 4 | 5 |
| Chenopodium album L. | 10 | 12½ |
| Anemone virginiana L. (Ohio) | 3 | 3½ |
| Polanisia trachysperma T. & G. | 1½ | 2¾ |
| Cassia chamaecrista L. | 2½ | 5⅔ |
| Astragalus carolinianus L. | 4 | 5½ |
| Meibomia illinoensis (Gr.) Ktz. | 4 | 7 |
| Euphorbia dentata Michx. | 1¼ | 4 |
| Euphorbia hexagona Nutt. | 1⅔ | 5 |
| Euphorbia nutans Lag. | 2 | 3¼ |
| Ceanothus ovatus Desf. | 4 | |
| Ammannia coccinea Rottb. | 1⅔ | 3 |
| Gaura parviflora Dougl. | 5 | 12 |
| Stenosiphon linifolium (Nutt.) Britt. | 5 | 8 |
| Onosmodium molle Michx. | 2 | 2½ |
| Lycopus americanus Muhl. | 2 | 5 |
| Mentha canadensis L. | 2½ | 3 |
| Mimulus ringens L. | 3 | 3½ |
| Lacinaria punctata (Hook.) Ktz. | 2½ | 3 |
| Helianthus giganteus L. (Ohio) | 12 | 13 |
| Coreopsis tripteris L. (Ohio) | 8 | 9 |
| Carduus altissimus L. | 10 | 11 |