104 33B. B. SPRUCE ON lOeonoma. 



crenatures a little elongated, indicating a transition from Eugeo- 

 noma to Astrandroeceum ; so that I do not consider the two sec- 

 tions at all equivalent to subgenera, but merely convenient ana- 

 lytical aids to the determination of the species. 



Some of the subordinate groups are natural enough — those for 

 instance which I have called Hohspadices, Densijlorw, and Verti- 

 oillijlorcd ; but most of the others can only be considered tentative, 

 to be abolished or modified when more abundant materials are 

 brought to their illustration. 



I proceed to give a synopsis of all the species represented by 

 intelligible specimens in the Kew Herbarium. It is matter of 

 regret that so few of the species described by Martins exist there. 

 The fine Greonomas discovered by "Wendland in Central America 

 are not always represented in the Kew Herbarium by specimens 

 perfect enough to enable one to classify them with certainty ; and 

 some of my own specimens are by no means so complete as might 

 be desired. 



§ 1. Hugeonoma. 



Tubus stamineua florum $ ore breviter 6- vel 3-dentatus, raro 



edentulus, 



Spathce angust<By G-lS-poIlicares^ ancipites^ serins compressce. 

 t Ilolospadices, spadicibtis omnino shnplicibus ; peJaneuh elato, etiam 



fiorifero spatlias plerumqne sitperante. 



1. O. ELEGAXS; Mart.', foliis pinnatisectis^ laciniis 3-4-jugis rhomboi* 

 dels longe acumiuatis, altemis ssepe angustioribus gramineis, venis 

 utrinque 19-23 acutiusculis ; spadicibus pedalihus, alveolis 5-6- 

 stichis labio inferiore subintegro ; spatha interiore dimidium pedun- 

 culumvix superante; floribus demumalte emersis, fl. S corolla calyce 

 vix longiore, fl. $ tubo stamineo ore dentihus 6 triangularibus in- 

 %ir\\cio.— Hah. Brasilia (Gardn. 5645; Boozin hb. Hook.). — Certe 

 caulescens nee aeaulis erit. 



2. G. OBOVATA, Weyull : priori affiuis, foliis tamen vel simplicibus vel 



pinnatisectis ambitu obvato-cuneatis bifurcis ; spadicum alveolis 8- 



stiehis labio inferiore hiMo.—Hab. American Centralis Costa Rica 

 ( WcmIL). 



3. G. CUNT.ATA, Wendl : foliis plerumque simplicibus basi longe cune- 

 atis, venis peracutis ; spadicibus adspectu Aroideo, crassis, 16 pollices 

 longis, alveolis confertis in series 8-lOsubtortas dispositis, labio infe- 



interiore pedunculum subsuperante. — Hab 



haculifi 



> 



Wendl. 



