292 Key to the System of 



GALIU1VI. 



1326. Fruit smooth and glabrous. 



Stems often short and erect, mostly somewhat rough from 

 minute hairlets ; leaves small, generally four in each 

 whorl, from broad-linear to ovate-lanceolar ; flowers 

 minute, axillary crowded, but never numerous ; flower- 

 stalks mostly abbreviated ; calyx lobeless ; corolla 

 whitish or yellowish, four-lobed ; fruit minute, slightly 

 two-lobed. G. nmbrosum. 



Fruit rough and beset with hooked hairlets. 



Stems often elongated and diffuse or prostrate, mostly beset 

 with short clinging hairlets ; leaves generally four in 

 each whorl, from narrow-lanceolar to ovate ; flowerstalks 

 mostly elongated, with few minute flowers on conspicuous 

 capillary stalklets ; fruit minute, tardily seceding into 

 two fruitlets. G. Australe. 



CAPRIFOLIACEAE. 



SAftXBUCUS. 



1327. Arborescent. 



Lowest segments of the leaves distant from the branchlets ; 

 corolla-lobes and stamens three or rarely four ; fruit 

 yellowish. Figure 76. S. xautliocarpa. 



Almost herbaceous. 



Lowest segments of the leaves close to the branchlets ; 

 corolla-lobes and stamens three or rarely four ; fruit 

 whitish. S. Gandichaudiana. 



COmPOSXTAE. 



IVIICROSERIS. 



1328. Fruits slightly narrowed into the somewhat truncate 

 summit. 



Almost glabrous ; root fascicular, edible, lactescent ; leaves 

 elongated, their lobes rather short and narrow ; headlets 

 of flowers amply expanding ; receptacle bractless ; involu- 

 cral bracts in several rows, acute, the innermost row far 

 the longest ; corolla of central flowers very narrow ; fruit 

 slender ; pappus-bristlets mostly biseriate, occasionally 

 plumous-ciliolated. M. Forsteri. 



