4 



Chr. Lehmann, 



Trib. I. Bifurcatae. CorolUs luteis; petalis obovatis integris; folüs plu- 

 rijugis V. multijugis; foliolis omnibus fere aequalibus, lateralibus 

 integerrimis integris v. bifidis, terminale trifido v. tridenlalo. 



Trib. II. Multifidae. Corollis luteis; foh'is phirijugis v. mullijugis; fo- 

 liolis varie dissectis incisis v. pinnatifidis. 



* Folüs utdnque v. viridibus v. serieeis et canescentibus ; foliolis mar- 



gine planis, lateralibus subaeqiialibus. 

 ** Folüs subtus albo-tomentosis ; foliolis margine revolutis inaequalibus, 

 inferioribus minoribiis. 

 Trib. III. Fragarioides. Corollis luteis; petalis emarginatis v. retusis 

 (except. P. fragarioide)'^ folüs infimis 2 — 3jugis (in nonnullis 

 speciebus intermixtis folüs ternatis) pilosis hirsutis, villosis, tomen- 

 tosis, neque glandulosis; foliolis inaequalibus sinipliciter serralis v. 

 dentatis, summis trihus majoribus distinclis, reliquis gradalim deor- 

 sum decrescentibus. 



* Gaule multifloro, ßorifero folüs radicalibus duplo multove longiore. 

 ** Caule I — 3floro, ßorifero longitudini foliorum radicaUum v. iis paullo 



longiore. 



Trib. IV. Glanddosae. Glanduloso-viscidae; folüs 3 — 5jugis (in P. bre- 

 vifolia 2jugis in P. adnata mullijugis); foliolis suborbiculatis 

 grosse duplicato-serrsiüs incisisve, summis tribus majoribus distin- 

 clis, terminali peWoiuhlo (except. P. adnata) reliquis gradatim deor- 

 sum decrescentibus basi obliquis margine externo tractu longiore 

 serratis incisisve; petalis obovatis v. obovato-orbiculatis integris. 



* Corollis luteis. 

 ** Corollis albis. 



Trib. V. Polypbyllae. Eglandulosae; corollis luteis; petalis obovatis 

 integris; folüs interruple-pinnatis multijugis; foliolis simpliciter ser- 

 ratis parallelo-nervosis, majoribus omnibus distinctis subaequalibus 

 subellipticis; sepalis externis in fructu tri- multifidis fere foliaceis. 



