НИ РАЕН ИРИНА ETT 
MR. J. MIERS ON THE BARRINGTONIACE.E. 59 
many of Butonica and Stravadium confounded with it, a list which I feel assured never 
received the sanction of Blume. 
The before-mentioned form only a portion of the many complications in which 
Barringtonia speciosa has been involved by authors; several others are exposed in 
the sequel. 
2. AGASTA. 
A few of the species referred by authors to Barringtonia differ from that genus so 
essentially, and are so uniform in their structure, that I propose to unite them into a 
new genus, Agasta'. I have selected as the type the magnificent species first collected 
by Dr. Solander in 1769 at Otaheite, when he accompanied Capt. Cook in his first 
voyage round the world. This plant, scarcely known to botanists, is well represented in 
Parkinson's inedited beautiful drawings, and is copiously described by Solander in his 
unpublished notes preserved in the British Museum, where he gives a full aecount of 
its floral and carpological characters. The genus agrees with Barringtonia in its large 
thyrse-like raceme of splendid flowers, in its extremely large vesicoid calyx, entire and 
undivided in the bud, subsequently splitting into two lobes by the pressure of the 
growing petals and stamens; but it differs from that genus in the development of its 
large fruit, and the entirely dissimilar structure of its seed. Solander, in his notes, gives 
an exact detail of this development, showing that the seed is much larger, occupying the 
entire space of its single fertile cell, being egg-shaped, consisting of an exalbuminous solid 
embryo, of mesopodal structure, as before described (ante, p. 53), and which is found in 
most of the genera of this family. 
AGASTA, nob. 
Barringtonia auct.; Butonica, Soland. (non Rumph.) ; Mammea (in parte), Linn. 
Calycis adnati limbus maximus, ovato-oblongus, parallele nervosus, in alabastro integer et omnino 
clausus, demum іп lobos 2 concavos ruptus, in fructu persistens. Petala 4, lobis calycinis 3—4plo 
longiora, euneato-oblonga, unguibus tubo staminigero affixa et cum illo caduca. Stamina numero- 
sissima, pluriseriata, imo in tubum brevem monadelpha ; filamenta filiformia, petalis longiora ; anthere 
parve, bilobe, lobis adnatis, paullo supra basin dorso affixis, rima longitudinali dehiscentibus. 
Stylus filiformis, longitudine staminum, persistens; stigma parvum, simplex. Discus epigynus, 
pulvinatim annularis, margine exteriore tubum staminiferum fulciens, interiore in urceolum brevem 
erectum productus. Ovarium inferum, turbinatum, vertice intra discum circa stylum cavato, 
4-loculare; ovula in quoque loculo 2 vel plura, apice funiculo brevi suspensa. Fructus majusculus, 
conice vel depressius obpyriformis, 4-gonus, levis, calyce coronatus: pericarpium crassissimum, 
spongioso-carnosum ; endocarpium coriaceum, extus fibris numerosis lignosis tectum, intus abortu 
l-loculare, cum loculis marcidis 3 in chorda longitudinali prominente eo affixa signatum, mono- 
spermum : semen magnum, loculo conforme; testa submembranacea, endocarpio adhzsa; embryo 
' exalbuminosus, solidus, eburneus, chords impressione longitudinaliter canaliculatus, esopodus. 
Arbores Asiatice, aut in insulis Oceani Pacifici vigentes, alie, ramosissime : folia maxima, т apicibus 
ramorum conferta, oblonga, breviter petiolata, alterna: thyrsus terminalis: flores speciosissimi, 
alterni: pedicelli longi, apice incrassati, imo bractea foliosa decidua muniti : fructus viridis, siccus 
brunnescens, nitidus. | 
` From áyazrós, admirandus. 
