RANUNCULACEAE. 



Determined by Alfred Rehder and E. H. Wilson. 



PAEONIA Linn. 



Paeonia Delavayi Franchet in Bull. Soc. Bot. France, XXXIII. 

 382 (1886); PL Delavay. I. 31 (1889). — Huth in Bot. Jahrb. XIV. 

 273 (1892). — Finet & Gagnepain in Bull. Soc. Bot. France, LI. 524 

 (1904); Contrib. Fl. As. Or. I. 221 (1905). 



Paeonia Delavayi, var. angustiloba Rehder & Wilson, n. var. 



Suffrutex stolonifems, 0.6-1.30 cm. altus, glaberrimus; rami 

 crassi inferne lignosi. Folia bi-ternati-secta, membranacea, laete 

 viridia, subtus glaucescentia, 15-25 cm. longa et 15-30 cm. lata; 

 segmenta pinnatifida, sensim in petiolulum alatum decurrentia, lobis 

 utrinque 2-4 lanceolatis et anguste lanceolatis acuminatis, 2-6 cm. 

 longis, et 0.5-1 cm. latis, integris v. dentibus paucis triangularibus 

 V. lanceolatis instructis, costa media venisque secundariis subtus 

 elevatis; petioli 5-15 cm. longi, supra canaliculati, basi dilatati. Flores 

 plerumque plures in apice ramulorum, terminales et axillares, cupuli- 

 formes, 5-6 cm. diam., ante anthesin subglobosi, nutantes, longe 

 pedicellati pedicello 4-14 cm. longo; calyx bracteis foliaceis 3 lineari- 

 lanceolatis acuminatis 2.5-8 cm. longis integris v. pinnatisectis per- 

 sistentibus suffultus; sepala 5, interiora tria suborbicularia, dimidiis 

 petalis subaequilonga, exteriora minora in bracteas transientia; petala 

 ovalia v. late ovalia, 5-8, concava, 2.5-3 cm. longa et 2 cm. lata, 

 apice leviter eroso-dentata v. Integra, atropurpurea v. fusco-pur- 

 purea; stamina numerosissima, filamentis compressis 4-10 mm. longis 

 fiavidis purpurascentibus glabris, antheris luteis oblongis 4-5 mm. 

 longis; discus cupularis, 3-4 mm. longus, irregulariter dentatus; 

 carpella 3, rarius 2 v. 4, purpurascentia, glabra, stigmate oblique. 

 Folliculi 2-3, ovoidei, 2-2.5 cm. longi, subito in rostrum contracti; 

 semina irregulariter ovoidea, angulosa, circiter 12 mm. longa et 8 mm. 

 lata. 



Western Szech'uan: west of Tachien-lu descent to Yalung 

 river, stony places fully exposed to sun, alt. 3000-3600 m., October 



318 



