







r 



403 



Histological and Physiological problems connected with the 

 peculiar conditions observed in South African vegetation. 



Ever since Dr. Pole-Evans took charge of the Division of 

 Botany in South Africa in 1913, the necessity of a Botanical 

 Survey of the Union has been urged, and though the estimates 



> did not make provision whereby the scheme could fully 



materialise, it is notable that during the past few years this 

 Division, in co-operation with the Division of Veterinary 

 Eesearch, the Department of Forestry and private Sympathisers, 

 has made considerable progress, both by actual survey work and 

 by the accumulation of a large amount of herbarium material, 

 which includes the valuable collection presented by Mr. E. E, 

 (Jalpin. F.L.S., to whom, with other collectors of past decades, 

 botanists of the present and future owe a debt of gratitude. 

 Thus were set the foundations of the Botanical Survey of the 

 Union, now authorised by the Minister of Agriculture, and the 

 display of such systematic use of every opportunity during a 



^ period which was naturally adverse to the elaboration of fresh 



schemes, augurs well* for the future of the movement. 



XXX.— DECADES KEWENSES 



Plaxtarum Nov arum in Heebabio Horti Eegii 



Coin SERV AT ARUM. 



DECAS XCIV, 



931. Calathodes oxycarpa, Sprague [lianunculaeeae] ; a 

 C. palmata, Hook. f. et Thorns., folliculis paucioribus sursum 

 angustatis nee truncatis, stylis longioribus, appendicibus 

 dorsalibus minoribus, antheris brevioribus, foliorum segmentis 

 hand acuminatis, serraturis brevioribus reeedit. 



Herba 2-3-5 dm. alta. Folia canlina 3-4, 5-7 cm. diametro; 

 petioli 4-10 em. longi ; vaginae infimae 1-1*5 cm. longae, ceterae 

 multo breviores; laminae segmenta 3, lateralia .usque 5—7 mm. a 

 basi bipartita, terminalia circumscriptione rhomboidea, lobis ob- 

 tusis breviter apiculato-serratis. Flores solitarii, vel caule seniel 

 cymose ramoso duo; pedunculi sub anthesi circiter 3*5 cm. 

 longi, sub fructu 6-5-8*5 cm. longi. Sepala 5, alba, caeruleo- 

 tincta (Wilson), obovato-elliptica, 1 cm. longa, 4-5-6-5 mm. lata, 

 5-nervia nervis 3 interioribus quam exterioribus magis conspicuis. 

 Filamenta 2-5-4-5 mm. longa ; antherae oblongae, 1-5 mm. longae. 

 Cornelia circiter 12, toro inferne 1*5 mm. ventraliter adnata, 

 subfalcata, stylis inclusis circiter .5 mm. longa, extra papillata, 

 dorso prope basin gibbosula ; styli recurvi, vix 1-5 mm. longi, 

 ventraliter stigmatosi; ovula biseriata, 9. FolUculi 6-10, 

 verticillati, a latere visi cymbiformes, 8 mm. longi, 4-5 mm. 

 lati, appendice dorsali suprabasali 1-5-1-75 mm. longo in axin 

 decurrente; styli 1-75 mm. longi. Calathodes pahnata, Oliv. in 

 Hook. Ic. Pl.t. 1935, quoad plantain fructiferam, non Hook. f. 

 et Thorns. 



