No. 2, September, 1920] MORPHOLOGY, ETC., VASC. PLANTS 249 



1901. PAMMEL, L. II., amd C. M. KlNQ. The germination of some trees and shrubs and 

 their juvenile forms. Proc. Iowa Acad. Sci. 25:292-340. Fig. 45-120. 1920.— See Bot. Absts. 

 5, Entry 1380. 



1902. Pole-Evans, I. B., and K. Lansdell. The weeds of South Africa. Notes on the 

 Canada thistle (Cnicus arvensls). Jour. Dept. Agric. Union South Africa 1: 73-75. / fig. 

 1920. 



1903. Roncagliolo, M. Descrizione anatomica e comparata degll organ! epigel di cinque 

 specie di mimosa. [Comparative anatomy of the aerial organs of five species of Mimosa.] Mal- 

 pighia 28: 435-457. 191!). 



1904. Sabnis, T. A. The physiological anatomy of the plants of the Indian desert. Jour. 

 Indian Bot. 1 : 33-43. 16 fig. 1919. — The author has studied the structure of the leaf and stem 

 of 165 species, 125 genera, and 50 orders of xerophytic plants of the Indian desert. This is 

 the introductory section of his paper and contains chiefly a discussion of the physical aspects 

 of the desert, including tables of meteorological data. The anatomy of a few forms in the 

 Menispermaceae and Capparidaceae is described and illustrated. Herbarium specimens were 

 used, and were sectioned unembedded. [See also Bot. Absts. 6, Entry 771.] — A. J. Fames. 



1905. Schaffner, John H. The dioecious nature of buffalo-grass. Bull. Torrey Bot. 

 Club. 47: 119-124. 1920.— The buffalo-grass, Bulbilis dactyloides (Nutt.) Raf., has been 

 variously considered, and even in our present manuals inconsistent statements are made as 

 to its dioecism. Field observations in Kansas and experimental results indicate that the dioe- 

 cious condition is the normal one, it being the only one found in the course of this investi- 

 gation. — P. A. Mum. 



1906. Shirley, John, and C. A. Lambert. The stems of climbing plants. Proc. Lin- 

 nean Soc. New South Wales 43: 600-609. PI. 60-66. 1918.— The results of the examination 

 of 53 climbing plant stems are given. A grouping of the structures according to natural orders 

 was found impossible, for similar characteristics were common to plants of many different 

 families, especially among dicotyledons. Therefore, classes were created and are discussed 

 in some detail, illustrated, and type species indicated. Under Subclass I: Dicotyledones, are 

 seven classes; (1) Normales, single cambium, wood and bast of each bundle lying along the 

 same radius; (2) Chiastoxylon, single cambium, in young stems four rays of alternate wood 

 and bast; (3) Aslroxylon, single cambium, bundles separated by stellate arrangement of 

 pluriseriate rays; (4) Endophloia, second bast occurring at inner margin of wood ring (bi- 

 collateral) ; (5) Exocycla, besides normal cambium, new cambium; — zones appear succes- 

 sively centrifugally; (6) Phloiocycla, new bast zones are produced in centripetal order; (7) 

 Polycycla, oldest bundles in pith, then a normal zone of wood and bast, or alternating rings 

 may be formed. Under Subclass II: Monocotyledones, are two classes; (1) Vulgares, usual 

 rind and scattered closed bundles; (2) Abnormales, differing from subclass (1) in one or other 

 of the above characters. The authors conclude that these abnormal stem structures in climb- 

 ers assist the free flow of elaborated sap in the bast. — Eloise Gerry. 



1907. Shreve, Forrest. Proliferation in cacti. [Rev. of: Johnson, Duncan S. The 

 fiuit of Opuntia fulgida; a study of perennation and proliferation in the fruits of certain Cacta- 

 ceae. Carnegie Inst. Wash. Publ. 269. PI. 12. 1918.]— Plant World 2: 1S2-183. 1919. 



1908. Steil, W. N. The distiibution of the archegonia and the antheiidia on the prothallia 

 of some homosporous leptosporangiate ferns. Trans. Amer. Microsc. Soc. 38:271-273. 2 fig. 

 1919. — In ordinary Poly podiaccac , the archegonia are formed on the so-called cushion directly 

 back of the apical notch, and the antheridia on the posterior portion of the prothallium; but 

 in some species the antheridia are produced on the lobes and margins. Under favorable 

 conditions of nutrition male prothallia became monoecious. In Osmundaceae the archegonia 

 are produced on the sides of the midrib from the notch to the posterior end where the anther- 



