No. 3, July, 1921] MORPHOLOGY, ETC., VASC. PLANTS 287 



ture, and chemical constitution of two cucurbitaceous fruits, namely, "Cassaba" and 

 "Honey Dew INIelon." Bothmelonsundoubtedly belong to the group known as the Inodoro^lS 

 variety of Cucumis melo. This species contains an extraordinary number of varieties and 

 strains, arranged in ten groups as follows: Canteloups, brodes, sucrins, melons d'hiver, ser- 

 pents, forme de concombre, Chito, Dudain, rouges de Perse, and sauvages; each of these 

 groups contains varieties or nearly allied races. The Cassaba melon, also known as "Kas- 

 saba," "Casaca," "Casabad,'.' and "Casba," was named for the town of Kassaba, about 15 

 or 29 miles from Smyrna, where it was extensively grown and whence it was introduced into 

 this country. Hundreds of acres are now grown each year in the San Fernando valley of 

 southern California. The Honey Dew melon is an old renamed winter melon from the south 

 of France. It is grown quite extensively at the present time in Colorado. The paper is well 

 illustrated by a series of photographs of the entire fruits and of fruits in cross section, as 

 well as a number of sketches of the histological characteristics. A chemical analysis is also 

 included. — Anton Hogstad, Jr. 



' MORPHOLOGY, ANATOMY AND HISTOLOGY OF VASCULAR 



PLANTS 



E. W. SiNNOTT, Editor 

 (See also in this issue Entries 1826, 1869, 1888, 1905, 2001) 



2002. Blauw, a. H. Over de periodiciteit van Hyacinthus orientalis. [On the periodicity 

 of Hyacinthus orientalis.] Mededeel. Landbouwhoogeschool Wageningen 17: 1-82. PL 

 1-5, fig- 1-46. 1920. — The periodic development in leaf formation, flower formation, and the 

 extension of rest periods are considered. During the leaf-formation period in April a bud 

 lies against the flower stalk, implanted on the disc in the axil of the innermost of the assimi- 

 lating leaves. The earliest evidence of the bud dates from the end of the July of the previous 

 year, and this bud forms the leaves which will function 2 years later. It consists of a few 

 leaf primordia round a growing point. Of these, the 2 outer will not develop into foliage leaves 

 but into scale leaves, remaining in the bulb. Such scale leaves and the basal parts of 

 the foliage leaves become scales of the bulb. — Flower formation takes place during the 

 leaf forming period in June, and the growing apex at that time is still low and flat. After 

 the leaves and roots have died and the bulbs have been dug, the growing point of the 

 inflorescence rises and reaches a length of 300-400 m- No outward differentation is visible. 

 Soon the flower primordium appears as a shallow groove on the wall which is to become 

 the bract. At the end of August several flower primordia appear, each with a floral bract. 

 At the beginning of September the 3 carpels are differentiated but are still open; they close 

 at the end of September. During late October, the reduction division of pollen mother cells 

 takes place. In dry-lying bulbs, a resting period now takes place. Low temperature during 

 the growing season greatly retards the development of floral and vegetative parts. — J. C. 

 Th. Uphof. 



2003. Cammerloher, Hermann*. Der Spaltoffnungsapparat von Brugmansia und Rafflesia. 

 [The stomata of Brugmansia and Rafflesia.] Osterreich. Bot. Zeitschr. 69: 153-164. PL S, 

 fig. 1-5. 1920.— Stomata are present in lower epidermis of perianth in both forms, absent 

 on other leaves. Upper surface is composed of small irregular cells, with occasional hairs; 

 lower epidermis is smooth, with distinct layers of cuticle. Stomata of Brugmansia have 

 2, 3, or 4 guard cells; those of Rafflesia are typically 4-ceIled. Many stomata are abortive and 

 it was not determined whether any performed functions of stomata or not. — E. M. Gilbert. 



2004. CotTLTER, J. M. Embryogenyinangiosperms. [Rev. of : Soueges, R. (1) Embryo- 

 genie des Liliacees. Developpement de I'embryon chez I'Anthericum ramosum. (Embryogeny 

 of the Liliaceae. Development of the embryo of Anthericum ramosum.) Compt. Rend. 

 Acad. Sci. Paris 167: 34-36. 1918 (see Bot. Absts. 2, Entry 484). (2) Embryogenie des Poly- 



