26 AET. I. B. HAY ATA : 



DiSTEiB. New to the flora of Formosa ; commonly found in 

 Japan, distributed in eastern North America and eastern Australia. 

 Not yeb known from China. 



Observ. Flowers solitary, sessile, or pedunculate ; leaves pel- 

 tate, elliptical, 10 cm. long, 6.5 cm. broad. 



Papaveracese. 



Corydalis DC 



Corydalis formosana Hayata sp. nov. Herba majuscula, 40- 



50 cm. alta, ramosissima, glaberrima, caulibus sulcatis flexuosis. 



Folia caulina cum petiolis 15 cm. longa, 7 cm. lata bipinnata, 



petiolis 4 cm. longis, pinnis remotis, ovatis 5 cm. longis 3 cm. latis, 



petiolulis 2 cm. longis, pinnulis subsessilibns, obovatis, trilobatis 



vel irregulariter lobiilatis apice rotundatis, lobulis obscure 



mucronatis. Eacemi 13 cm. longi, peduncuhs 4 cm. longis, bracteis 



ovatis acutis 4 mm. longis, pedicellis 4 mm. longis. Sepala 



mimutissima oblique rotundata, obtusa, IJ mm. longa, basi 



rotundata. Petala exteriora dissimilia, alteio cum calcari 17 mm. 



longo, 4 mm. lato, apice patente emarginato leviter mucronato, 



dorso prope apicem alato, (ala 2 mm. longa 1^ mm. lata), basi 



calcarato, calcari 4 mm. longo 2 mm. lato, prope apicem abrupte 



recurvato, apice rotundato ; altero angustato 12 mm. longo, 2 mm. 



lato, versus apicem dilatato, rotundato, leviter emarginato dorso 



prope marginem alato, alis triangularibus 1 mm. latis ; interiora 



angustissima 12 mm. longa ungulata, unguibus 5 J mm. longis, 



J mm. latis, laminis oblique quadrangularibus 6 mm. longis 2J 



mm. latis, apice rotundatis emarginatis, mucronatis, prope apicem 



dorso alatis, alis leviter productis 1 mm. latis. Stamina 12 mm. 



longa, filamentis complanatis, 1-^ mm. latis, sursum gradatim 



