216 Floristik und Systematik der Phanerogamen. 



colonies begin to appear about the third day, the fourth attenuation 

 having usually only from five to ten of these. Growth of the colonies 

 takes place slovvly. B. E. Livingston (Washington). 



Bolus, 11., Contr ibulio ns to the African Flora. (Trans- 

 actions of the South African Phüosophcial Society. Vol. XVI. 

 Pt 2. 1905. p. 135-152.) 



The iollowing new forms are described : 

 Mura/tla (§ Enmuraltia-Gymnocarpa Chodat) spicata (nearest to 

 M. thymifolia Thunb., but distinct by its slender virgate habit and rather 

 large flowers); Psoralea bioviilata (near to P. teniiissima E. Mey.^ but 

 distinct by its 2-ovuled ovary, the absence of stipules and the very short 

 pedicels); Lichtcnsteinia /<"o/&eß«a (characterised by much-divided leaves 

 and spreading inflorescence) ; Felicia maritima (allied to F. ficoiclea DC, 

 but quite distinct by its slender habit, alternate, obtuse, narrower leaves, 

 and acute involucral bracts); /^. /'/a«ö^a«//(near to F. brac/tyglossa Cass., 

 but habit, leaves and longer peduncles differ); Gymnostephinm leve ; 

 Leyssera montana; Phymaspcrmum r//7/j/TSSM/« (with peculiar, very small, 

 appressed^ ovate, thick leaves; like P. aciculare in habit); Osteospermum 

 tripinnatum (with much cut leaves like those of 0. tanacetifolium, but 

 with an erect woody herbaceous or suffruticose habit and peduncles 

 bearing a single head); Erica (§ Ceramia) milanjiana (differing from the 

 allied E. tenuipes Guth. and Bol. in its 4-nate leaves, more strictly cya- 

 thiform coroUa, broader filaments and more exserted anthers); Gnidia 

 pulvinata (near to G. scabricla Meisn. and G. piibescens Berg but diffe- 

 ring in flora! characters); Struthiola leptantha; Eiilophia Fianaganü 

 (resembles E. laxiflota Schltr., but is distinguished by the absence of a 

 chin or projecting foot at the base of the column); Mystacidium{§ Gom- 

 phoantrnm) Peglerae (most nearly resembles M. {Angraeciim) caffriim 

 Bolus, but well distinguished by smaller flowers, different sepals and 

 petals, and by the lip); M. ( § Gomphocentrnm) millari (like M. gracile, 

 but distinguished by obliquely ovate, subacute petals and the nude ros- 

 tellum); Holothrix Ciilveri (allied to H. Mac Oweniana, Reichb. f., but 

 spike much closer with more numerous flowers and spurred sepals); 

 Disa Marlothii (in inflorescence and general shape of the flowers 

 strikingly like D. gladiollflora Burch., but differing in its herbaceous 

 expanded leaves arid high sub-erect rostellum); D. (§ Microsperistera 

 Bolus nov. sect.) Schlechteriana (most resembles D. Draconis Scotz. ; 

 characterised by rigid^ wiry, grass-like leaves by the small^ subresu- 

 pinate, uncinate petals, by the entire lip, by the two distinct glands of 

 the pollinia and the rather high rostellum); Pterygodiiim {§ Eii-Ptery- 

 godiiim Schltr.) leiicantluim (allied to P. catholicum Swartz and P. acuti- 

 foliiim Lindl.); P. {§ Corydiim) deflexnm{\ try distinct by the lip-appen- 

 dagt", the dark green colour of which forms a sort of band inside and 

 close to the yellow petals). 



The paper also contains notes on the South African species of 

 Mystacidiiim including a table for their determination. 



F. E. Fritsch. 



Brown, F. B. H., A botanical survey of theHuron river 

 vallev. HI. The plant societies of the bayou at 

 Ypsifanti, Michijran. (Bot. Gaz. XL. p. 264—284. 

 1905.1 



The area deait with in this paper comprises sixty acres lying west 

 and Southwest ofYpsilanti Highland Cemetery. It enibraces a 

 Wide variety of conditions, including a large bayou and stretch of flood- 

 plain and stream, and is in a large measure typical of the whole Valley 

 of the H u r o n river. 



