244 COMMERCIAL SUPPLIES [Bot. Absts. 



ring, two neighboring vittae sometimes being fused together. Athamanta cretensis L. fruit 

 is elongated, grayish-brown, tomentose, crowned with a collar-like stylopodium and the long 

 curved styles, 5 mm. high, 1.5 mm. deep, and 1 mm. broad. The ribs are not noticeable and 

 the cremocarp not readily separable into its component mericarps. Two or three, seldom 

 one, vittae are found in the ground tissue of the mesocarp between each 2 ribs. In the pri- 

 mary ribs outside of the fibrovascular bundle lie one, two or three small secondary oil reser- 

 voirs. The cells of the mesocarp contain a yellowish substance. The outer epidermis con- 

 tains numerous hesperidin crystals of rosette, plumose or fine needle types. [See also next 

 following Entry, 1698.] — Heber W. Youngken. 



1698. Styger, Jos. Beitrage zur Anatomie der Umbelliferenfriichte. [Contributions on 

 the anatomy of umbelliferous fruits.] Schweiz. Apoth. Zeitg. 57: 183-188. Fig. 13-15. 1919. 

 — The macro- and micro-morphological characteristics of the fruits of Oenanthe Phellandrium 

 Lam., Aethusa Cynapium L., and Levisticum officinale Koch are considered together with the 

 habitats of the plants yielding them. Oenanthe Lachenalii Gmel. fruits show thick walled 

 wood parenchyma only in the ribs. The sclerenchyma fibers are arranged as in 0. Phellan- 

 drium. In Oenanthe pimpinelloides fruits the sclerenchyma plates are more broadly devel- 

 oped in the ribs than in 0. Phellandrium, but are extended over the vittae in a more layered 

 band up to four cell rows broad. [See also next preceding Entry, 1697.] — Heber W. Youngken. 



1699. Van Wisselingh, C. Bijdragen tot de Kennis van de zaadhuid. Derde bijdrage: 

 Over de zaadhuid der Papaveraceen en Fumariaceen. [Contributions to the knowledge of seed- 

 coats. Third contribution: About the seed-coats of the Papaveraceae and Fumariaceae.] 

 Pharm. Weekblad 56:849-865. PI. 1, fig. 5. 1919. 



ADULTERATION AND PHARMACO-ANALYSIS 



1700. Gathercoal, E. N. Couch grass versus Bermuda grass. Jour. Amer. Pharm. 

 Assoc. 8: 26-32. Fig. 1-8. 1919. — A historical, morphological, chemical and therapeutical 

 discussion of Agropyron repens and Capriola Dactylon, with bibliography. — Anton Hogslad, 

 Jr. 



1701. Ztjfall, C. J. The structure of Bermuda grass compared with that of triticum. 

 Jour. Amer. Pharm. Assoc. 8: 472-473. Fig. 1-2. 1919. — A comparison of the structure of 

 Bermuda grass {Capriola Dactylon) with that of triticum {Agropyron repens). The dried 

 rhizome of Capriola is seldom less than 2, and usually 3 mm., or more in diameter, and is 

 usually hard and brittle, whereas triticum is seldom more than 2 mm. in diameter and usually 

 soft and pliable. A marked difference is noted in the cortex, that of Bermuda grass being 

 about one-fourth as broad as that of triticum and containing only 1 or 2 vascular bundles, 

 whereas the cortex of triticum contains 6 or 7 bundles. Endodermis is absent in Bermuda 

 grass, pith is four or five times as broad as that of triticum. In Bermuda grass there are 

 from 30 to 35 bundles scattered throughout the pith, while in triticum there are only 10 or 12. 

 Powdered Bermuda grass exhibits a large amount of starch and the powder is also character- 

 ized by the absence of endodermal cells. — Anton Hogstad, Jr. 



1702. Ewing, Clare Olin, and Joseph F. Clevenger. Ballota hirsuta, Benth. An 

 adulterant of horehound (Marrubium vulgare L.). Jour. Amer. Pharm. Assoc. 8: 273-275. 

 Fig. 1-2. 1919. — A morphological study of Marrubium vidgare, Ballota hirsuta and Ballota 

 acetabulosa, to aid in the identification of the materials offered for entry as "horehound," 

 over which a great deal of confusion has arisen during the past two years. The following are 

 the distinguishing characteristics: The culyx of true horehound, which is only about half 

 as large as those of Ballota acetabulosa and Ballota hirsuta, is tubular, whereas the calyx of 

 both Ballota species is nearly funnel-shaped. The calyx of Ballota acetabulosa has 10-20 

 obtuse lobe.", which are crenate, whereas the marginal lobes of Ballota hirsuta are dentate. 

 The leaves of Marrubium vulgare arc tufted and usually curved or bent and sessile, whereas 

 those of Ballota hirsuta are usually straight and are somewhat elevated by a multicellular 

 basal stalk. — Anton Hogstad, Jr. 



