. American journal of pharmacy. 10-12 mm. long. The hilum is near the ])ointed cotyledons are plano-convex, white and ()il\. The radicleis short and conical. The taste of tlie fruit is cantaloui)e-like ; thatof the seed, Ijland. Am. Jour. Pharni. )February, 19-1. \ Cassaha and Honey Dciv Melons. 109 IIISTOLOCV OF THE CASS.\1!A M1:L()X. This fruit, l)cin!;- the prochict ot the ripening of the conihincclreceptacle and inferior ovary, presents for microscopical examina-tion two distinct regions, viz., pericarp (receptacle and ovarianwall) and seed. PKKU ARl ( IlC. 5). T. The pericarj^ in
. American journal of pharmacy. 10-12 mm. long. The hilum is near the ])ointed cotyledons are plano-convex, white and ()il\. The radicleis short and conical. The taste of tlie fruit is cantaloui)e-like ; thatof the seed, Ijland. Am. Jour. Pharni. )February, 19-1. \ Cassaha and Honey Dciv Melons. 109 IIISTOLOCV OF THE CASS.\1!A M1:L()X. This fruit, l)cin!;- the prochict ot the ripening of the conihincclreceptacle and inferior ovary, presents for microscopical examina-tion two distinct regions, viz., pericarp (receptacle and ovarianwall) and seed. PKKU ARl ( IlC. 5). T. The pericarj^ in surface view sliows numerous for the mostpart jjolygonal cells, the vertical walls of which are considerahlythickened. Scattered through this region are abundant stomatawhose guard-cells are surrounded bv 5 more or less crescent-shapedneighboring cells ( iig. 6). The walls of the stomatal apparatusare colorless. In transverse view the epicar]) cells (big. 5), are])alisade-like and form a layer up to So microns thick. The outer. Fig. 5. Transverse section of portion of pericarp of Cassaba Melon. Epicarp withrod-thickenings in the radial walls (ep); mesocarp (mes); pitted parerichynia (p); spiraltracheae (.t). (magnified). half of most of the vertical walls of these cells is greatly thickened,while the inner half is for the most part thin walled. Occasionallythickening of the vertical wall extends nearly or quite the com-plete length of the cell. A considerable number of uniseratc non-glandular hairs, up to no Cassaba and Honey Dczv Melons. -^l; J-p^^I™- I tebruary, 1921. microns in length are to be observed as outgrowths of theepicarp. Each of these (Fig. 7) is composed of 4-5 cells. The basalcell of the hair is characterized by an irregular thickening of itswall, while the distal cell shows a curved, sharp-pointed circular scars are also evident in this region. (See ) These represent the bases of the non-glandular hairs whichhave become detached.
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