1954] 



PLANTS COLLECTED IN NYASALAND 



485 



omnia basalia vel caulis usque ad circiter 10 cm. supra basim foliosus, superne 

 foliis valde reductis vel squamiformibus tantum praeditus. Folia inferiora petio- 

 lata, peltata; lamina siccitate rigide papyracea, ovato-suborbicularia usque sub- 

 orbicularia, ad marginem breviter angulata, angulis circiter 10, magnitudine vari- 

 abilia, 1-3 cm. longa, 0.9-2.3 cm, lata, supra opaca et siccitate brunnea, subtus 

 pallidiora vivo grisea, nervis primariis circiter 8 ab apice petioli palmatim ra- 

 diantibus supra valde inconspicuis subtus prominulis, venulis utrinque aegre 

 cernendis; petiolus 1.7-3 cm longus, ima basi plus minusve dilatatus, 2-7 mm. 

 supra basim laminae insertus. Inflorescentiae terminales necnon ex axillis squa- 

 marum caulinarum supremarum orientes, aliae satis dense corymbosae multica- 

 pitulatae 4.5-12 cm. longae, aliae etiam valde reductae 1.5-3 cm. longae 1-usque 

 paucicapitulatae; bracteae superiores et bracteolae lineari-Ianceolatae usque 

 lineares, 1.5-5 ram. longae; pedunculi capitulorum tenuiusculi, 4-10 mm. longi, 

 bracteolati. Capitula heterogama, radiata; involucrum subcylindricum, 4 mm. 

 altum, ad apicem 2.5-3 mm. latum; foliola 7-8, lineari-oblonga, ad apicem acuta 

 puberula purpurascentia. Flores radii 4-5, tubo 3-3.5 mm. longo, ligulae oblongo- 

 ellipticae, 4.5-5 mm. longae 1.5-2.1 mm. latae, ad apicem tridenticulatae; flores 

 disci 10-11, 3 mm. longi, tubulosi, tubo sursum gradatim ampliato et ibi breviter 

 5-lobato; antherae 1.25 mm. longae; styli rami ad apicem truncati et minute peni- 

 cillati. Ovarium omnium florum oblongo-fusiforme, 1.75-2 mm. longum, 0.5 mm. 

 latum, dense et breviter pubescens, ad apicem pappi setis albidis scabridulis 

 3-3.5 mm. longis coronatum. Achaenia pallide brunnea, 1.75 mm. longa, 0.6 mm. 

 lata, tenuiter costulata, more ovarii vestita, 



Mlanje District: Mlanje Mountain, 2440-2740 m., Mar. 1897, G. Adamson 427 

 (Herb. Kew.). Mlanje, Tuchila Plateau, plant found on damp rocky places, 1830 

 m., May 1901, /. M. Purves 10 (TYPUS in Herb. Kew.). Mlanje Mountain, southwest 

 ridge, locally gregarious on open mossy seepage slopes, herb 15-20 cm. high, 

 rhizome thick, branched, plant fleshy, leaves grey beneath, flowers yellow, 2120 

 m., June 28, 1946, 16508. 



5. peltophorus is very obviously and closely related to 5". milanjianus S. Moore 

 (q.v.)y and it is rather difficult to indicate points other than differences in size 

 and number in which the two differ. The differences in size are so numerous and 

 striking, affecting particularly the capitula and florets, and the material avail- 

 able sorts so neatly into the two, that I feel that S. peltophorus, which might be 

 well described as a miniature of 5". milanjianus, should stand as a separate spe- 

 cies. To make the contrast between the two easier and more graphic, I have tabu- 

 lated the more striking differences. 





S. milanjianus 



S. peltophorus 



Largest lower cauline leaves 



6-8 cm. in diam. 



1-3 cm. in diam. 



on each plant. 







Bracteoles on peduncles of 



3-6 mm. long 



1-2 mm. long 



capitula 







Involucre 



0.9-1 cm. long, 



0.4 cm. long, 





0.5-0.6 cm. wide 



0.25-0.3 cm. wide 



Ligules 



8-9 mm. long 



4.5-5 mm. long 



Number of disc=florets per 



about 17-22 



about 10-11 



capitulum 







Length of disc-florets 



8 mm. 



3 mm. 



Lobes of disc-florets 



1.5 mm. deep 



0.6 mm. deep 



Anthers 



2.5 mm. long 



1.25 mm. long 



Pappus 



7-8 mm. long 



3.-3.5 mm. long 



