May, 1920] TAXONOMY, VASC. PLANTS 267 



guished by the secund apikelets adaxial on the rachia (abaxial in Paspalum :in<l species of 

 Panicum with racemose spikelcts), and based on H. erucaeformia (Sibth. & Smith) Griseb. 

 (Stapf uses B. Isachne Stapf based on Panicum laachne Roth), includes 56 species, among 

 which are B. mutica (Panicum muticum Kursk., /'. numidianum Lam., P. barbinode Trin.,), 

 called Para grass in America; Axonopua is based on A. compreasua Beauv. {Paspalum com- 

 pression Rasp.); Paspalum includes only 5 species. 



The new genera, species, and varieties of part 2, issued in 1918, and of the present part 

 arc as follows: 



Part 2. Schizachyrium nodulosum (Andropogon nodulosus Hack.), S. griseum, S. semi- 

 berbe Nees var. flocculiferum, S. semiberbe Nees var. hemileium (Andropogon hirtiflorus 

 Rendle, not Kunth), S. ursulus, S. Jeffreysii (Andropogon Jeffreysii Hack.), S. Schwein- 

 furthii (Andropogon Schweinfurthii Hack.), S. Thollonii (Andropogon Thollonii Franch.), 

 S. compressum (Andropogon compressus Stapf), S. scintillans, S. pulchellum (Andropogon 

 pulchellus D. Don), S. Kelleri (Andropogon Kelleri Hack.), S. rupeslre (Andropogon rupes- 

 ttis K. Schum.), Andropogon Lima (Andropogon amethystinus var. Lima Hack.), A. pilo- 

 sellus, A. homogamus, A. calvescens, A. Stolzii, A. purpureus, A. laxatus, A. laxatus var. 

 ligulata, A. linearis, A. pseudapricus (Andropogon apricus var. africanus Hack.), A. amplec- 

 tens Nees var. diver sifolius (A. diver sifolius Rendle), A. Dummeri, A. Dummeri var. calvua, 

 A. Pseudo-Schinzii, A. canaliculars Schumach. v&r.fastigians and var. Fyffei, A. tumidulus, 

 A. Macleodiae, A. auriculatus, A. gayanus Kunth var. squamulalus (A. squamulalus Hochst.), 

 A. macrophyllus, Cymbopogon proximus (Andropogon proximus Hochst.), C. floccosus (An- 

 dropogon floccosus Schweinf.), C. divaricatus, C. afronardus, C. validus var. lysocladus, C. 

 excavatus (Andropogon excavatus Hochst.), C. densiflorus (Andropogon densiflorus Steud.), 

 Hyparrhenia finitima [Anderss. in Schweinf. Beitr. Fl. Aethop. 300, 306, 1867] (Andropogon 

 finilimus Hochst.), H. gazensis (Cymbopogon gazense Rendle), H. dichroa (Andropogon 

 dichroos Steud.), H. rufa (Trachypogon rufus Nees), H. rufa var. major (Cymbopogon rufus 

 var. major Rendle), H. allissima (Andropogon altissimus Hochst.), H. exarmata (Cymbo- 

 pogon exarmatus Stapf.), H. poecilotricha (Andropogon poecilotrichus Hack.), H. vulpina, 

 H. chrysargyrea (Cymbopogon chrysargyreus Stapf), H. Nyassae (Andropogon Nyassae 

 Rendle), H. smithiana (Andropogon smithianus Hook, f.), H. hirla (Andropogon hirtus 

 L.), H. soluta (Cymbopogon solutus Stapf), 77. soluta var. violascens, H. bagirmica (Cymbo- 

 pogon bagirmicus Stapf), H. grallata, H. Barteri (Andropogon Barteri Hack.), H. Barteri 

 var. calvescens (Andropogon filipendulus var. B calvescens Hack.), H. filipendula (Andro- 

 pogon filipendulus Hochst.), H. filipendula var. pilosa (Andropogon filipendulus var. pilosus 

 Hack.), H. familiaris (Andropogon familiaris Steud.), H. macrolepis (Andropogon macro- 

 lepis Hack.), H. pseudocymbaria [Anderss. 1856] (Anthistiria pseudocymbaria Steud.), H. 

 cymbaria (Andropogon cymbarium, L.), //. variabilis, H. collina (Andropogon collinus Pilger), 

 H. spectabilis, H. formosa, H. elongata, H. rudis, H. phyllopoda, H. arrhenobasis (Andro- 

 pogon arrhenobasis Hochst.), H. Lintonii, H. cyanescens (Cymbopogon cyanescens Stapf), 

 H. petiolala, II . confinis var.? pellita (Andropogon confinis var. pellitus Hack.), H. mac- 

 rarrhena (Andropogon confinis var. macrarrhenus Hack.), //. Welwitschii (Cymbopogon Wel- 

 witschii Rendle), H. gracilescens, H. bracteata (Andropogon bractealus Humb. & Bonpl.), 

 H. Lecomtei (Andropogon Lecomtei Franch.), H. Neivtonii (Andropogon Newtonii Hack.) 

 H. Newtonii var. macra, II. Stolzii, H. cirrosula, H. subplumosa, H. diplandra (Andrapogon 

 diplandrus Hack.), H. pachystachya, H. Gossweileri, H. glabriuscula [Anderss. 1S67] (Andro- 

 pogon glabriusculus Hochst.), H. andongensis (Cymbopogon andongensis Rendle), H. multi- 

 plex var. leiopoda, H. involucrata, II. notolasia, H. Cornucopiae (Andropogon Cornucopiae 

 Hack.), II. (?) pusilla (Andropogon pusillus Hook, f.), Dybowskia (new genus) Serettii (Ati- 

 dropogon Dybowskii Franch) 



Part 3. Monocymbium (new genus) ceresiiforme (Andropogon ceresiaefortnis Nees), 

 Anadelphia trepidaria (Andropogon trepidarius Stapf), A. leptocoma (Andropogon leptocomus 

 Trin.) A. tenuifolia, A. longifolia, A. pubighimis, A. hamata, A. arrecta (Andropogon arrectus 

 Stapf.), A. afzeliana (Andropogon afzelianus Rendle), A. trispiculata, Mo-nium (new genus) 

 macrochaetum, Trachypogon Thollonii (T. polymorphic var. Thollonii Franch.), T. durus, 

 T. planifolius, Elymandra (new genus) androphila (Andropogon androphilus Stapf.), Digi- 



