No. 1, February, 1921] TAXONOMY OF VASCULAR PLANTS 85 



548. Staff, Otto. Gramineae. Flora of Tropical Africa 9<: 577-768. 1920.— This part 

 continues the Paniceae as far as Setaria. The new genera, species and varieties in this part 

 are as follows: Paspaliditun (new genus) geminatum {Panicum geminatum Forsk.), P. deser to- 

 rum (Pantcum desertorum A. Rich.), Urochloa bifalcigera (Panicum bifalcigerum Stapf), U. 

 trichopus (Panicum trichopus Hochst.), U. pullulans (Panicum geminatum Schweinf. not 

 Forsk.), U. pullulans var. (?) mosambicensis (Panicum mosambicense Hack.), U. brachyura 

 (Panicum brachyurum Hack.), U. bolbodes (Helopus bolbodes Steud.), U. echinolaenoides , 

 U. Helopus (Panicum Helopus Trin.), U. javanica (Panicum javanicum Poir.), U. rudis, 

 U. setigera (Panicum setigerum Retz.), U. insculpta (Panicum insculptum Steud.), U. rep- 

 tans [P. reptans L.). Echinochloa obtusiflora, E. Holubii (Panicum Holubii St&Tpf.), E. hap- 

 loclada (Panicum haplocladum Stapf), E. jubata, Acroceras (new genus) oryzoides (Panicum 

 oryzoides Sw.), A. macrum, A. amplectens, A. basicladum, Commelinidium (new genus) may- 

 umbense (Panicum mayumbense Franch.), C. gabunense (Panicum gabunense Hack.), C. ner- 

 vosum, Panicum flacciflorum, P. transvenulosum, P. spongiosum, P. ianthum, P. juncifo- 

 lium, P. carinifolium, P. fulgens, P. nervatum (Isachne nervata Franch.), P. pubiglume, P. 

 plagianthum, P. sublaetum (P. laetum Stapf, not Kunth), P. viciniflorum, P. filicaule, P. 

 Hanningtonii, P. phragmitoides, P. poaeoides, P. graniflorum, P. vagiflorum, P. poecilan- 

 thum, P. aphanoneurum, P. Rowlandii, P. genuflexum, P. paucinode, P. manicatum, P. sociale, 

 P. novemnerve, P. arcurameum, P. subflabellatum, P. longijubatum, P. pectinellum, P. cal- 

 vum, P. subobliquum, P. caudiglume [not Hack. 1901], P. microthyrsum, Entolasia (new genus) 

 imbricata, E. olivacea, Hemigjminia (new genus) Arnottiana (Panicum Arnottianum Nees), 

 Cyrtococcum (new genus) setigerum (Panicum setigerum Beauv.), Sacciolepis ciliocincta, 

 (Panicum ciliocinctum Pilg.), S. cingularis, S. nana, S. Chevalieri, S. brevifolia, S. huillensis 

 (Pancium huillense Rendle), S. spiciformis (Panicum spiciforme Hochst.), S. interrupta 

 (Panicum interruptum Willd.), S. cymbiandra, S. scirpioides, S. glaucescens, S. typhura 

 (Panicum typhurum Stapf), S. incurva, S. transbarbata, S. auriculata. S. angusta (Panicum 

 angustum Trin.), S. leptorrhachis, S. seslerioides (Panicum seslerioides Rendle), S. catumben- 

 sis (Panicum catumbense Rendle), S. albida. — A. S. Hitchcock. 



549. Stuckert, T. Contributions a la connaissance de la flora Argentine. [Contribu- 

 tions to the knowledge of the flora of Argentina.] Annuaire Conservatorre et Jard. Bot. 

 Geneve 20 : 428-464. 1919.— This consists of two parts. The first part is. III. Enumeration 

 des Valerianacees de V Argentine by Stuckert and Briquet. The new names by Briquet 

 are, Valeriana sarscphylla (Stuckert 7622a), V. effusav&r. genuina (Stuckert 1037 and others), 

 var. Fiebrigii (Bolivia, Fiebrig 2196), V. approximata (Tucuman, Stuckert 22022), V. Gil- 

 liesii (Betckea Gilliesii Hook. & Arn.), V. glomerulosa (Tucuman, Stuckert 7637), V. Stuck- 

 ertii (Stuckert 2749 and others). The second part is, IV. Catalogue des Oxalidacees de I' Ar- 

 gentine by Stuckert. Oxalis andicola var. Wallichiana (0. andicola var. calyce glabriusculo 

 Hook.) is a new variety. There is an annotated list with bibliography of 82 species of Oxalis 

 and 3 species of Hypseocharis. — A. S. Hitchcock. 



550. Tatzer, a. Vanda X Mariannae, eine Kreuzung zwischen Vanda tricolor Lindl. 

 und Vanda Denisoniana Rchb. f. [Vanda X Mariannae, a hybrid between Vanda tricolor 

 Lindl. and Vanda Denisoniana Rchb. f.] Orchis 13:50-51. 1919.— This hybrid is here de- 

 scribed and illustrated. — E. B. Payson. 



551. TuRRiLL, W. B. A revision of the genus Mendoncia. Bull. Misc. Inf. Kew 1919: 

 407-424. 1919.— This Central and South American genus is contrasted with related genera 

 of the Acanthaceae by means of a dichotomous key. Twenty-five species are recognized, 

 and under each is given an extended Latin diagnosis with citation of exsiccatae. A key 

 to the species is also provided. The following species and varieties are described as new 

 and the following new combinations made: Mendoncia Spraguei, M. Tonduzii, M. coccinea 

 Veil. var. sparatteria (M. Velloziana Nees var. sparatteria Nees), M. coccinea var. elliptica, 

 M. gracilis, M. orbicularis, M. retusa. — E. B. Payson. 



