Tas. 5029. 
COSMANTHUS GRAnDIFLORUS. 
< Large-flowered Cosmanthus. 
Nat. Ord. HypRoPHYLLACE#.—PENTANDRIA MONOGYNIA. 
Gen. Char. Calyx quinquepartitus, sinubus nudis. Coro//a late campanulata, 
caduca, 5-fida, tubo esquamato, lobis zstivatione quincunciali. Stamina 5, fila- 
mentis gracilibus, corollam subsquantibus. Pollen oblongum. Nectarium mi- 
nimum. Ovarium basi excepta pilosum, 5-loculare, placentis 2 parietalibus dorso 
liberis 2-8-ovulatis. Stylus bi-(tri-)fidus. Capsula valvis 2 medio septiferis de- 
hiscens. Semina 4-10, ovoideo-angulosa, lateraliter aut rarius extremitate ad- 
fixa, rugulosa. Hméryo (ex C. parviflora) minimus, radicula supera.—Herbee 
graciles, Boreali- Americana, annue ; foliis alternis ; racemis elongatis, ebracteatis, 
simplicibus ; floribus pedicellatis, parvis, albis vel pallide ceruleis.—Differt a 
Phacelia et Eutoca tubo corolle nudo; ab Emmenanthe preterea corolla caduca. 
Benth. 
Cosmantuvs grandiflorus ; adscendens, foliis lato-ovatis dentatis basi subcor- 
datis rugosis uti caules et calyces hispidis, racemis ad apicem pluribus 
circinatis, calycibus subsessilibus, placentis ultra 50-ovulatis. Benth. 
CosMaNTHUS grandiflorus. Benth. in De Cand. Prodr. v. 9. p. 291. 
Evroca grandiflora. Benth. in Trans. Linn, Soc. v. 17. p. 278. 
Evtoca speciosa. Nuttall, Plant. Gambel. p. 158. 
This plant has probably the largest flowers of all of the Order 
Hydrophyllacee. Although discovered by Mr. Douglas during 
his wanderings in California before 1834, it appears only lately 
to have been introduced to our gardens by Messrs. Veitch, 
through their collector Mr. William Lobb. We saw it for the 
first time flowering in the extensive, hardy herbaceous ground 
of Mr. Borrer, at Henfield, and thence obtained the specimens 
here figured. Mr. Nuttall detected the species at San Diego, 
California, and considering it to possess characters different fror 
those of Eutoca (Cosmanthus) grandiflorc , he described it under 
the name of Ewtoca speciosa. Only a solitary specimen was re- 
ceived by the Horticultural Society from Mr. Douglas ; but we 
possess fine native specimens in the herbarium from Mr. Nuttall 
JANUARY lst, 1858. 
