74 TAXONOMY OF VASCULAR PLANTS [BoT. Absts., Vol. VII, 



484. Blatter, E., and F. Hallberg. The flora of the Indian desert, (Jodhpur and 

 Jaesalmer). Jour. Bombay Nat. Hist. Soc. 26: 218-246; 525-551; 811-818. 89 -pi. 1918-19.— 

 A systematic enumeration with extensive notes and citation of specimens. The following 

 new forms are described : Farsetia macrantha, Cleome brachycarpa Vahl var. glauca, Gynandrop- 

 sis pentaphylla DC. var. nana, Melhania magnifolia, Zizyphus truncata, Psoralea odorata, 

 TephrOsia incana Grah. var. horizontalis, T. muUiflora, T. petrosa, Rhynchosia rhombifolia, 

 R. arenaria, Angoeissus rotundifolia, Trianthema pentandra Linn. var. rubra, var. flava, 

 Pulicaria rajputanae, Glossocardia setosa, Convolvulus densiflorus, C. gracilis, Aerua pseudo- 

 tomentosa. The seventy-eight photographic illustrations of desert scenes and vegetation 

 accompanying this paper are excellent. — E. D. Merrill. 



485. BoLzoN, P. Ricerche botaniche nel bacino della Dora Baltea. [Botanical researches 

 in the basin of the Dora Baltea.] Nuovo Giorn. Bot. Ital. 25: 309-376. 1918.— The author 

 presents a detailed enumeration of an extensive collection of plants recently made in the 

 valley of the Dora Baltea in northern Italy. — /. M. Greenman. 



486. Brown, William H., and Elmer D. Merrill. Philippine palms and palm products. 

 Forestry Bur. Philippine Islands Bull. 18. 129 p., U pi. 1919.— See Bot. Absts. 6, Entry 533. 



487. Farwell, Oliver A. Notes on the Michigan Flora, II. Michigan Acad. Sci. Ann. 

 Rept. 21 : 345-371. 1919. — Reference is made to several species whose range is known to cross 

 Michigan and which should, therefore, be sought in the state. Among these may be men- 

 tioned: Phegopteris Rober liana (Hoffm.) A. Br., Asplenium viride Huds., Calamagrostis 

 hyperborea Lange, Woodsia glabella R. Br. and Calamagrostis Pickeringii var. laciistris 

 (Kearney) Hitch. The author claims that the application of the principles of priority in 

 nomenclature produces the following changes : Elodea canadensis Mx. for philotria canadensis 

 (Mx.) Britton, Digitaria Heist, for Syntherisma Walt., Ginania Bub. for Holcus Authors, 

 Reboulea Kunth. for Eatonia Authors, Trichoon Roth, for Phragmites Trin., Trichophyllum 

 Ehrh. for Eleocharis R. Br., Iria castanea (Mx.) n. comb, for Fimbristylis castanea (Michx.) 

 Vahl., Eriophorum for Scirpus in part, and Phaeocephalum Ehrh. for Rijnchospora Vahl. 

 Changes in family names, in whole or part, are recommended as follows: Scheuchzeriaceae 

 becomes Juncaginaceae, Alismaceae becomes Alismoidaceae, Potamogetonaceae becomes 

 Fluvialaceae, Valisneriaceae becomes Hydrocharidaceae, Gramineae becomes Graminaceae, 

 Polygonaceae becomes Persicariaceae, Chenopodiaceae becomes Blitaceae, Leguminosae be- 

 comes Leguminaceae, Rhamnaceae becomes Ziziphaceae, Tiliaceae becomes Tiliataceae, Ona- 

 graceae becomes Cornicidataceae, Umbelliferae becomes Umbellataceae, Fagaceae becomes 

 Castanaceae, Scrophulariaceae becomes Ringentaceae, and Compositae becomes Compositaceae. 

 — H. T. Darlington. 



488. Hemsley, W. Botting, and others. Flora of Aldabra: with notes on the flora of 

 neighboring islands. Bull. Misc. Inf. Kew 1919: 108-153. 1919. — A description of the Alda- 

 bra atoll in the Indian Ocean is followed by paragraphs concerning the climate, history of 

 botanical investigation, and relation of its flora to that of some other small islands of the 

 Western Indian Ocean. There is given a systematic enumeration of the vascular plants of 

 Aldabra with the citation of exsiccatae. — E. B. Payson. 



489. Jeanpert, Ed. Enumeration des plantes de Macedoine. [Enumeration of plants of 

 Macedonia.] Bull. Mus. Hist. Nat. [Paris] 25: 662-668. 1919.— This series of papers listing 

 the plants of Macedonia is here concluded. — E. B. Payson. 



490. Lecomte, Henri. Sur les principatix caracteres de structure des bois. [Concerning 

 the principal characters of wood structure.] Bull. Mus. Hist. Nat. [Paris] 26: 166-171. 1920. 

 —See Bot. Absts. 7, Entry 326. 



491. McAtee, W. L. Specific, subspecific, and varietal categories of insects and the 

 naming of them. Entomol. News 31: 46-55, 61-65, 1920. — The author does not regard inter- 

 gradation a sufficient reason for "lumping" closely related species which exhibit it. Men- 



