402 Mr. J. Miers on the Calyceracee. 
apice brevissime disjuncta ; anthere oblonge, basi emarginate, 
imo usque ad medium syngenesiz, dehine libere, connectivo 
crasso dorsali imo nodoso filamento continuo affixee. Ovariwm 
tubo calycis adnatum, 1-loculare, l-ovulatum, apice conico 
nudum. Achenia plurima, congesta, brevia, profunde 5- 
sulcata, pleraque (presertim inferiora) inter se et cum recep- 
taculo in globum echinatum concreta, lobis calycinis excres- 
centibus et spinescentibus, divaricatis ; pauca superiora, seepe 
libera, vel interdum (sed non semper) sterilia. Semen ordinis. 
Herbee perennes, Brasilienses, Bonarienses et Chilenses, sub- 
procumbentes ; radix subfusiformis ; caules plures, ramosissimi ; 
folia alterna, radicalia petiolata, caulina sessilia, oblonga vel 
linearia, integra vel inciso-dentata; pedunculi oppositifolii, 
monocephali, axillares et terminales. 
1. Acicarpa spathulata, R. Br., Linn. Trans. xii. 129 ;—Acicarpha 
spathulata, Rich. Mém. Mus. vi. 78, tab. 12 ;—Cryptocarpha 
spathulata, Cass. Dict, xu. 85 ;— Sommea calcitrapa, Bory ;— 
Echinolema arenarium, Jacq. fil. ;—Acanthosperma littorale, 
Velloz, Flor, Flum. Icon. viii. tab, 152 ;—Buphthalmum Bona- 
riense, Pers. Ench. 11. 474;—glabra, caulibus decumbentibus, 
ramosis; foliis cuneato-oblongis, apice rotundatis et mucro- 
natis, imo in petiolum longum decurrentibus, integris vel 
rarlus paucidentatis, 3-nerviis, utrinque cano-glaucis ; pedun- 
culo monocephalo in ramulis axillaribus terminali, folio lon- 
giore; involucri foliolis inzqualibus, spathulato-oblongis, 
mucronatis, integris, patentibus, flores longe excedentibus.— 
Rio de Janeiro, in arenosis maritimis. 
Planta bene cognita et auctoribus ampliter descripta ; recepta- 
culum in juniore etate filiformi-cylindraceum ; ovaria numero- 
sissima, illinc cum paleis totidem brevioribus interspersa, cre- 
briter circumposita, mox coherent omnia in massam solidam, 
centralia (aut superiora) libera et sterilia, ut in aliis speciebus. 
2. Acicarpa crassifolia, n. sp.;—glaberrima, caule subdecum- 
bente ; foliis inferioribus spathulato-lanceolatis in petiolum 
brevem latum cuneatis, superioribus subsessilibus, cuneato- 
ellipticis, subobtusis, carnosis, margine subrevoluto remote et 
obsolete sinuato-denticulatis, 3-nerviis, nervis subtus promi- 
nulis; pedunculo solitario, terminali, monocephalo ; capitulo 
majusculo; involucri foliolis 5-7, obovato-oblongis, acutis, 
mucronatis, membranaceis, margine crassiusculo, integro,.— 
Maldonado, in dumetis arenosis, v. s. in herb. Hook, (Tweedie). 
Species preecedenti valde analoga, sed folia viridiora, breviora 
et latiora, margine denticulata ; planta 5-pollicaris ; folia alterna, 
1-2 poll. long., 6-8 lin. lat., petiolo lato, subamplexicauli, bre- 
