22 BEGONIACE^E. 



Begonia ferruginea HAYATA Mater. Fl. Formos. p. 123. Descriptio 

 aucta : Segmenta 5 ; cxteriora 2 majora, interiora 2 minora ; cxteriora late 

 oblonga 10 mm. longa 7 mm. lata plus minus obliqua apice rotundata margine 

 subintegra extus hirsuta iiitus glabra ; segmenta interiora minora ; intimum 

 minimum glabrum oblongum 7 mm. longum 3 mm. latum apice obtusum. 

 Styli 2-3 mm. alti semi-infundibuli-forme dilatati 2-fidi ; ramis 2 mm. longis 

 erectis tortuosis vermiformibus. Ovarium hirsutum oblongo-obovatuni 6-7 mm. 

 longum 4 mm. latum obliquum 3-alatum ; ala posteriore elongata transverse 

 sita liiieari circ. 10 mm. longa 4 mm. lata apice obtusissima hirsuta ; alis late- 

 ralibus verticaliter sitis linearibus 8 mm. longis sursum latioribus 1-2 mm. latis 

 deorsum angustioribus ad nullum reductis hirsutis. Capsula ab apice pedicellorum 

 subito deorsum reflexorum pendula 2-locularis teuuiter ferrugineo-tomentosa 

 demum subglabrata (alis exceptis) lineari-obovata 15 mm. longa 5 mm. lata apice 

 subtruncata basi attenuata ad pedicellum abeuns ; ala posteriore quadrangulari- 

 formi 2 cm. longa l cm. kta apice obtusissima tenuiter tomentosa nervosa 

 transverse descendenteque sita; alis latcralibus linearibus verticaliter sitis l^cm. 

 longis 4 mm. latis nervosis tenuiter tomentosis. Semina numerosissima minu- 

 tissima polygono-ellipsoidea reticulata rubro-fulvescentia mm. longa. 



HAB. Arisan, leg. B. HAYATA, Jan. 1912, (typus fructus). 



The present species is contrasted from B. laciniata ROXB. var. formosana 

 HAYATA in having hairy ovary and hairy outer segments which are oblique- 

 ly oblong and quite rounded at the apex, and in having quite erect branches 

 of the styles. 



Begonia laciniata ROXB. var. formosana HAYATA Mater. Fl. 

 Formos. p. 124. Descriptio aucta : Fl. f : segmenta 5, exteriora 2 ; interiora 

 3 ; segmentum cxterius rotuiidatum 8 mm. longum 7 mm. latum apice triangu- 

 lari-obtusum basi rotuiidatum ad insertionem 3 mm. latum margine subinteg- 

 rum ; interiora minora iiisequalia. Styli 2, breviores 1 mm. alti 2-fidi, ramis 

 verniifornic recurvis. Ovarium oblique triquetrum 5 mm. longum ad angulum 

 alatum, alis insequalibus ; ala posteriore quadrangulari-formi 4 mm. longa 3 mm. 

 lata ovario transversum sita, alis lateralibus angustissime linearibus 3 mm. longis 

 1 mm. latis. Flores cum ovario alisque toto glabri. 



HAB. Mai, Juli. 1912, leg. B. HAYATA. 



