102 63. RUBIACEJE. 



32, Galium LINN. 



Dicliotomous Key to tie Formosan Species. 



( 1 ) Fruits muiicate, without hooked hairs G. yi' 



Fruits beset with hooked hairs. (2). 

 ( 2 ) Stem slightly hairy or glabrous. (3). 



Stem hairy, hairs spreading G. rotundifdium. 



( 3 ) Stem slightly hairy, hairs retrorted, leaves with short retrorted or spread- 

 ing hairs G. Aparine. 



Stem quite hairless, leaves with ascending hairs G. ecJiinocarpwm. 



Galium Aparine LINN. 

 HAB. 



DISTUIB. China ; generally spread in the Northern Hemisphere. 



Galium echinocarpum HAY ATA Mater. Fl. Formos. p. 117. Procum- 

 bent rooting at the nodes. Stem angular, glabrous or iiitid, internodes 2 cm. 

 long. Leaves 6-verticillate, oblanceolate, sessile, 12 mm. long, 3| mm. broad, 

 rounded mucronate at the apex, (mucronate parts ?. mm. long) attenuate at 

 the base, margin remotely serrate-ciliate, scarcely hairy on the upper surface 

 (hairs ascendent), glabrous on the lower surface. Cymes terminal, few- 

 flowered, branches ternate. Flowers pedicellate. Calyx-tube ovoid, 5 mm. long, 

 densely covered with falcate hairs, limb obsolete. Corolla rotate, 2 mm. in 

 diameter, 4-lobed, lobes ovate, 1 mm. long, f mm. broad, obtuse at the apex. 

 Stamens 4, alternate to corolla-lobes, i mm. long. Styles 1 mm. long, 2-fid, 

 stigma capitate. Fruits didymous, orbicular, 1 J mm. in diameter, densely 

 covered with hail's (hairs erect and falcate at the apex). 



HAB. Mt. Morrison, Mt. Arisan. 



Somewhat near G. trifidum MICHX. ; but greatly differs in having much 

 smaller leaves with ascendent hairs. Comes nearer to G. Aparine LINN, from 

 which this is distinguishable by the ascending, but not retrorted, hairs. 



Galium gracile BUNGE ; MATSUM. et HAYATA Enum. PL Formos. p. 

 200. 



HAB. Koshun, Tamsui, Kelung. 



