Pammel — Anatomical Characters of Seeds of Leguminosae. 107 



and the cell-cavity large. In the Queensland Alphitonia 

 excelsa the Malpighian cells are very long, with the cell-walls 

 and light line but slightlv lis^nified. 



Nymphaeaceae. Wigand and Dennert (471, 55. pi. 6.f. 

 69), Weberbauer (467, 231. pi. 8. f. 11), and Wettstein 

 (468) have studied the order. In Nelumho luiea, as in Dra- 

 cocep/ialum, the Malpighian cells occur in the wall of the 

 ovary, which is intimately connected with the testa. Wett- 

 stein describes it as part of the testa. The considerably 

 elongated, somewhat dark cells have a rather wide light 

 line, which runs across the middle portion. Weberbauer 

 shows longitudinal pores in the region of the light line. A 

 central canal extends from the upper surface down into the 

 wall. With chlor-iodide of zinc the walls of the Malpighian 

 cells color blackish-brown, and the light line also, somewhat 

 later. Phlorooflucin shows no lignin reaction. Concen- 

 trated sulphuric acid and iodine color the walls deep brown. 

 The cells of the testa and the wall of the ovary are normally 

 blackish-brown because of the presence of pigment. 



Scitaynineae. The seeds of this order have been studied 

 by many investigators, because of their ecological, physio- 

 logical, and anatomical peculiarities. I shall refer only to 

 some of the more important papers: Hegelmaier (370); 

 Mattirolo (401); Overhage (415); Tschirch (449.450); 

 Humphrey (382); Hirsch (373); Kayser (386); Klebs 

 (134); Gris (347); Wittmack (474); Paul (419); Schu- 

 mann (442); Treub (447a); Pfeiffer (200); Holfert (116); 

 Le Meunier (408); Russow (212). 



Ganna indica has been studied by numerous investigators. 

 The very hard seed of this species is covered by a waxy mate- 

 rial but this does not obscure the numerous stomata which 

 appear as small pits. On removing the outer covering the 

 stomata come more clearly into view. The Malpighian cells 

 are very much elongated, and where the stomata occur are 

 curved in. The lio;ht line extends across the cells a little 

 above the middle. With chlor-iodide of zinc the light line 

 and remainder of the cell-wall color yellowish-brown, very 

 slowly changing to a brown-black. The light line is some- 

 what more refractive at first. Phloroglucin and hydrochloric 



