THE GENUS TANNODIA 127 



to their proper genus, it may serve a useful purpose if a diagnosis 

 of that genus, modified in accordance with existing knowledge, be 

 supplied. To that diagnosis is appended a nominal list of the 

 species. 



TANNODIA Baill. Adans. i. 251, t. 7, figs. 1, 2 (1860). Flores 

 dioici vel casu polygamo-dioici, petaliferi. S" Calyx 2-5-partitus, 

 lobis valvatis. Petala 5, raro 4. Discus e glandulis 5 vel 4 petalis 

 filamentisque exterioribus alternis compositus. Stamina 7-12, 

 2-seriata ; filamenta seriei exterioris petalis isomera iisque oppo- 

 sita, basi libera et ssepissime filamentis seriei interioris basi 

 parum connatis paulo breviora ; antherae oblongse, dorsifixae, 

 2-loculares; loculiparalleli rimislongitudinalibusexteriorum semper 

 introrsum, interiorum nunc extrorsum nunc lateraliter dehis- 

 centes. Ovarii rudimentum 0. 2 Calyx 5- vel 4-lobus, lobis im- 

 bricatis inaequalibus. Petala 5 vel 4. Discus cupuliformis vel 

 annularis. Ovarium 3-loculare, pubescens ; ovula in quoque 

 loculo solitaria ; styli 3, glabri, basi breviter connati, primum 

 erecti, demum patuli, semel 2-fidi. Capsula 3-cocca, pubescens ; 

 cocci 2-valves. Semina ovoidea, ecarunculata ; testa Crustacea, 

 opaca ; albumen carnosum ; cotyledones planae, latae. — Frutices 

 arboresve. Folia alterna, petiolata, basi 3-5-nervia, costa mediana 

 penninervi, margine Integra vel casu breviter 3-loba. Flores 

 parvi vel minuti in racemos tenues terminales dispositi, bracteati 

 bracteolatique, utriusque sexus sub quaque bractea saepius 2-ni 

 rarissime plures, saepissime longiuscule pedicellati pedicellis 

 semper articulatis. 



Species 4, Africae tropicae et insularum Comorensium incolas. 

 Genus in sectiones 2 dividitur :— 



1. Eutannodia. Calyx ? 5- vel 4-fidus, lobis triangularibus. 

 Petala $ calycem magnopere excedentes. — Tandonia Baill. Adans. 

 i. 184 (I860) non Moq. 



2. Holstia. Calyx $ alte 5-partitus, lobis spathulatis. Petala 

 ? calyce multo breviora. — Pax in Engl. Bot. Jahrb. xliii. 220 

 (1909) pro genere. 



Specierum Enumeratio. 

 §1. Eutannodia. Calycis 2 segmenta brevia, triangularia. Pe- 

 tala ? calyce 3-plo longiora. Flores nonnunquam polygamodioici. 



1. Tannodia cordifolia Baill. Adans. i. 251, t. 7, figs. 1, 2 

 (1860). Flores 5-meri.— Muell.-Arg. in DC. Prodr. xv. 2, 728 

 (1866). Tandonia cordifolia Baill. I.e. 184 (1860). Agrosti- 

 stachys comorensis Pax in Engl. Bot. Jahrb. xxiii. 523 (1897). 



Insulce Comorenses. Mayotte ; apud aquae dejectus M'sap6r6, 

 Boivin ! in locis baud exacte notatis, Humblot 382 ! 390 ! Schmidt 

 194. 



2. Tannodia Swynnertonii Prain. Flores 4-meri. — Croton 

 Sivynnertonii S. Moore in Journ. Linn. Soc. Bot. xl. 194 (1911). 



Africa orientalis. Africa orientalis lusitanica ; in sylvis Chi- 

 rinda ditionis Gaza, 1000-1200 m. s.m., Swynnerton 109 ! 6519. 



§2. Holstia. Calycis 2 segmenta elongata, spathulata. Petala 

 $ calyce breviora. Flores stricte dioici. 



