SCITAMINE.K. 215 



172, fig. 24. 



Hai!. Tailioku, ciilt. leg. Y. Shiji.uia, Aug. 1914. 



ScHUJiANN uotes " Voider- uud Hintei-Iudieii. Die Pflauze wird nirgeuds 

 mehr in dem Zustande des Indigenats getrofien." 

 Alpinia Linn. 



Ou worldug up my collectious of tliis genus, I liave priucipally followed 

 K. Shumann's monogi-aph aiipeared iu Engler's "Das Pflauzeureich." But, the 

 delimitatiou of the suhgenera is not quite applicable to the Formosan species. 

 Both primary aud flowering Lracts are usually very deciduous and sometimes 

 altogether wanting, aud therefore it is difiticiflt to determine the subgenera 

 \)j tlie bracts. For couvenience sake, I have divided the genus by the general 

 characters of the plants, without taking auy special refereuce to the primary 

 and flowering bracts. 



Conspcctus of Ihe suhgenera, 



Bracts small, even the largest does not exceed 1 cm. iu leugtli ; flowers 

 small usually racemosely pauiculate. I. Autalpinia. 



Bracts none or very small ; flowcrs middle-sizcd deusely spicate or rarely 

 racemose. II. Froholocalyx. 



Bracts very large, even the smallest not sliorter thau licm. iu leugtli, 

 perfectly euclosiug flower-buds ; flowers largc, racemose or pauiciflate rarely 

 densely spicate. III. Catimhmm. 



Subgenus I. Aiitalpinia 



1. Leaves elougately oblong, uot longcr thau four times thau broad 



A. ohlongifolia. 



Leaves liuear-lanceolate or lanceolatc, louger thau four times thau 

 broad 2. 



2. Lips shortly aud obtusely 2-lobed at the apex A. helungensis. 



Lips acutely 2-Iobed at the apex A. sp. 



Alpinia oblongifolia H.^yata sp. nov. (Fig. 79-d, e). Caulis circ. 56 cm. 

 longus ghibcr. Folia oblonga vel oblougo-lauceohxta 21 cm. longa 6 cm. lata 

 apice acumiiiata, acmninibus angustissime liuearibus, basi rotundata vel ro- 

 tundato-cunctita utraque glabra memliranacea margiue liaud hirsuta, ligulis 

 oblongis se latere interiore connatis. Panicula 10-12 cm. hinoa cum floribus 



