Serieaitelateaniniiaineesiienddiiamameniimmamaainnel 
Tas. 8743. 
PTERIDOPHYLLUM racemosvum. 
Japan. 
PAPAVERACEAE. Tribe HyprcorpEag. 
PreriDoPpuyLLum, Sieb. et Zucc.; Benth. et Hook. f. Gen. Plant. vol. i. p. 54. 
Pteridophyllum racemosum, Sich. et Zuce. in Abh. Akad. Miinchen, vol. iii. 
p. 720, t. 1, fig. a, 1-12; Mig.in Ann. Mus. Bot. Lugd.-Bat. vol. iii. p- 12; 
Prantl ¢ Kiindig in Engl. €d Prantl, Nat. Pflanzenfam. vol. iii. pars 2, 
p- 137; Matswmura, Ind. Pl. Japon. p. 147; Fedde in Engl. Pflanzenr. 
vol. iv. 104, p. 88; species unica. 
Herba perennis, acaulis, rhizomate praemorso. Gemma cataphyllis rotun- 
_ datis herbaceo-scariosis fimbriatis 8-12 mm. longis. Folia petiolata, 
ambitu oblanceolata, impariter pectinato-pinnatisecta, 6-15 cm. longa, 
2-2°5 cm. lata; pinnae angulo fere recto-patente, e parte tertia superiore 
basin versus cito decrescentes, infimae ad squamas setosas redactae, rectae 
vel subfalcatae, lineares, apice rotundatae, minute emarginatae et ex sinu 
mucronulatae, sub eo parce crenulatae, basi in latere versum spectante 
auriculatae, auri¢ulo integro vel parce dentato dentibus in setas abeuntibus, 
3-4 lin. latae, tenues, subtus setis conspersae, caeterum glabrae. Injlore- 
scentia racemosa, scapo nudo folia excedente suffulta, racemo subramoso 
vel superne simplici; pedicelli filiformes, maturi ad 15 mm. longi; bracteae 
rotundatae, setoso-dentatae vel glanduloso-denticulatae, saepe parvulae vel 
minutae; bracteolae similes, sed minores, prope basin pediecelli. Calyx 
2-sepalus ; sepala rotundata, caduca, 1°5-2 mm. longa. Petala 4, aequalia, 
elliptico-oblonga, tenuia, mox decidua, alba, ad 6 mm. longa. Antherae 
4mm. longae. Ovariwm obovoideo-orbiculare, glabrum ; stylus ad 8 mm. 
longus; stigma bilobum; ovula 2-4, anatropa, ex ovariifundo adscendentia. ~ 
Fructus siliculiformis, valvis 2 dehiscens. Semina oblongo-obovoidea, 
plerumque perfecta ; testa laevis, embryo minutus.—O, Srapr. 
The genus Pteridophyllum is represented by the solitary 
species here figured, which is a native of the mountains 
of Central Japan and is confined to that area. The 
species was originally discovered by Siebold in the 
province of Sinano. In most botanical treatises the 
genus, which is of much scientific interest, is placed next 
to Hypecoum, itself a connecting link between the 
Papavereae and the Fumaricae. But while this is probably 
the most satisfactory treatment, the affinity between 
Pteridophyllum and Hypecoum is apparently somewhat 
remote. The plant from which our figure has been 
Jan.—Marcu, 1918, | 
