No. 1, February, 1921] TAXONOMY OF VASCULAR PLANTS 79 



512. Davidson, Anstruther. [Without title.] Bull. Southern California Acad. Sci. 

 19: 10-12. 1920. — Linanthus saxiphilus, Draba saxosa and Hutchinsia calif ornica are de- 

 scribed as new. There are also notes on certain species of Lwpinus and Linanthus. — Roxana 

 Stinchfield Ferris. 



513. Eberhardt, Ph. Sur une variete indochinoise du Quisqualis indica (Combretacees). 

 [On an Indo-Chinese variety of Quisqualis indica (Combretaceae).] Bull. Mus. Hist. Nat. 

 [Paris] 25: 675-676. 1919.— A variety, Quisqualis indica L. var. annamensis, is described as 

 new to science.— -E. B. Payson. 



514. Ehinger, M. Odontoglossum Rossii Lindl. Orchis 13 : 33-35. 1919.— Notes on this 

 species and some of its varieties are given with an illustration of the species.— iS. B. PaTjson. 



515. Engler, A. Sterculiaceae africanae. VL [Sterculiaceae of Africa. VI.] Bof 

 Jahrb. 55: 350-380. 1919.— A contribution under the general heading "Beitrage zur Flora 

 von Afrika. XLVII. herausgegeben von A. Engler.," continued from Bet. Jahrb. 45: 339. 

 Three genera, Melhania, Hermannia, and Cola are treated, the main portion of the paper 

 being an extended elaboration of the genus Hermannia. Since K. Schumann's monograph 

 of the African Sterculiaceae in 1900 the explorations in the Transvaal and other portions 

 of South Africa have contributed a vast amount of material. Especially rich in this 

 genus have been the collections of Dinter in Dutch-Southwest-Africa, Range and Schafer 

 in Namaqualand, and Schlechter in the Transvaal and Namaqualand. In 1907 Engler 

 described eleven species. In the present paper, begun in 1918, about forty species are 

 described as new, three of which are proposed by Diels and four by Schlechter. Engler 

 has retained most of Schumann's subgenera as sections but Schumann's subdivision of 

 Euhermannia he could not retain; rather Harvey's groups in this subdivision were found to 

 be more natural though they are here increased to seven. The section Acicarpus has been 

 much elaborated beyond the treatment of Harvey. The systematic subdivisions of Her- 

 mannia have natural geographic ranges. Engler's sections are as follows: (1) Mahrenia, 

 north and east Africa, (2) Euhermannia, center of development southwestern Cape Colony, 

 (3) Scaphiostemon, Damaraland, (4) Acicarpus, Abyssinia to the Transvaal and Namaqua- 

 land, and (5) Mahernia, mainly South Africa. The general distribution of the genus shows 

 it to be very old and long established in its present range. That it dates back to a time 

 when the continents probably had a different configuration than at present is indicated by 

 the occurrence of one endemic species in South Australia and three in Texas and Mexico. 

 Fifty-five species of Hermannia are treated in the paper. The following species, varieties, 

 and combinations are new: Section Mahrenia; H. Uhligii Engl. Massai Steppes. Section 

 Euhermannia; H. glabripetala, Engl, Little Namaqualand; H. cinerascens Engl., Little Nama- 

 qualand; H. Juttae Dinter & Engl., Great Namaqualand; H. melissifolia Engl., S. W. Africa; 

 H. prismatocarpoides Engl., East Cape Colony; H. patellicalyx Engl., Great Namaqualand; 

 H. arida Diels, Southwest Cape Colony; H. memhranifiora Schltr., Southwest Cape Colony; 

 H. myrioclada Diels, Southwest Cape Colony; H. suhsquamulata Engl., Southwest Cape 

 Colony; H. Bachmannii Engl., Southwest Cape Colony; H. minutiflora Engl, Little Nama- 

 qualand to Damaraland; H. macra Schltr., Little Namaqualand; H. longiramosa Engl., 

 North Hereroland. Section Scaphiostemon; H. tenuipes Engl., southwest Africa. Section 

 Aciocarpus; H. longicornuta Engl., Great Namaqualand; H. spinulosa Engl., Great Nama- 

 qualand; H. deserticola Engl., Great Namaqualand; H. intricata Engl., Great Namaqualand; 

 H. aspericaulis Dint. & Engl., Little Namaqualand; H. modestus (Ehrenb.) Planch, var. 

 elatiorK. Schum. subvar. virgatissima Engl., Damaraland; subvar. brevicornis Engl., Trans- 

 vaal; subvar. macropetala Engl., Transvaal, Damaraland and Hereroland; subvar. mediipetala 

 Engl., Damaraland; var. tstimebensis Engl., Hereroland; H. Stuhlmannii Engl, East Africa; 

 H. pseudo-Mildbraedii Dint. & Engl., Damaraland; H. sideritifolia Engl., Transvaal; H. 

 Seitziana Engl., Great Namaqualand; H. glandulosissima Engl., Damaraland; H. teitensis 

 Engl., Kilimanjaro; H. tomentosus (Turcz.) Schinz Msc. var. brevifolia Engl., Damaraland; 

 H. Seineri Engl., north Hereroland, and var. latifolia Engl. Section Mahernia; H. sparsipilosa 

 Engl., Transvaal; H. pulchella L. var. picta n. comb., Great Namaqualand; H. bicolor Dint. 



