90 THE AMERICAN BOTANIST. 



seeds are planted 1:86, The study of seeds, 6:95, More about 

 seeds 5 :65, New work 5 :111, Collecting seeds 5 :47, Wildflow- 

 ers from seeds 6:92, Naming plants from seeds 4:79, Seeds 

 and light 10 :36, Why seeds are kept cool and dry 6 :116, Cam- 

 phor for germinating seeds 7:15, The germination of seeds 

 2:77, Germination of American lotus 11:40, A seed problem 

 5 :77, Relation of elevation to the shape of seeds 3 :15, Ameri- 

 can lotus seeds 11:17, Job's tears 8:36, The tonka bean 8:34, 

 Abrus precatorius 2 :58, Seed-stalk of black acacia 12 :84, 

 Knowing beans 12:112, Gathering nuts 3:66, Some foreign 

 nuts 12:3, The pistachio nut 12:39. Much additional infor- 

 mation regarding seeds may be found in other articles in these 

 volumes. Any volume will be sent for 50 cents, or for 40 

 cents if ordered with a year's subscription. For prices of full 

 sets see advertising pages. 



Glandular Plants. — The glands found in plants orig- 

 inate in many ways and function in as many more. The Ohio 

 Naturalist for June prints a list of nearly two hundred Ohio 

 plants that have glands on or in their leaves. Of these, by far 

 the largest division is that with punctate leaves in which the 

 glands are seen as minute dots, clear, yellow or black in color 

 when the leaf is held up to the light. The St. Johnsworts 

 {Hypericum) are good examples of this class. Another di- 

 vision represented by the bee-balm (Monarda) and the mints 

 {Mentha) have glandular scales, while still another is charac- 

 terized by glandular hairs and other emergencies. Of these the 

 nettle ( Urtica) is a good example of stinging hairs, but many 

 plants with aromatic foliage are included, such as the walnut, 

 several of the lady-slippers and some ferns. The glands in 

 the interior of the leaves usually secrete volatile oils, but the 

 glandular scales found on the stems and leaves of many plants 

 secrete resins. The huckleberry {Gaylusaccia resinosa) may 

 be mentioned as an example of the latter. It is not well under- 



