26 ART. I.—B. HAYATA: 
Distris. New to the flora of Formosa; commonly found in 
Japan, distributed in eastern North America and eastern Australia. 
Not yet known from China. 
OpsEeRv. Flowers solitary, sessile, or pedunculate ; leaves pel- 
tate, elliptical, 10 em. long, 6.5 cm. broad. 
— 
Papaveraceee. 
Corydalis DC. 
Corydalis formosana Hayata sp. nov. Herba majuscula, 40- 
50 em. alta, ramosissima, glaberrima, caulibus suleatis flexuosis. 
Folia caulina cum petiolis 15 cm. longa, 7 cm. lata bipinnata, 
petiolis 4 em. longis, pinnis remotis, ovatis 5 em. longis 3 em. latis, 
petiolulis 2 cm. longis, pinnulis subsessilibus, obovatis, trilobatis 
vel irregulariter lobulatis apice rotundatis, lobulis obscure 
mucronatis. Racemi 13 em. longi, pedunculis 4 em. longis, bracteis 
ovatis acutis 4 mm. longis, pedicellis 4 mm. longis. Sepala 
mimutissima oblique rotundata, obtusa, 14 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 2mm. longa 14 mm. lata), basi 
calearato, 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 54 mm. longis, 
4mm. latis, laminis oblique quadrangularibus 6mm. longis 24 
mm. latis, apice rotundatis emarginatis, mucronatis, prope apicem 
dorso alatis, alis leviter productis 1 mm. latis. Stamina 12 mm. 
longa, filamentis complanatis, 14mm. latis, sursum  gradatim 
