OF ARTS AND SCIENCES. 99 



Douhtfid Species. 



13. C. CARNOSULUM, Moqiiin, DC. Prodr. 13^ 64. Described from 

 a specimen in lierb. Hooker, said to be from California, but collector 

 unknown. The only certain locality is Port Gregory in extreme 

 Southern America, where it was collected by R. O. Cunningham. It 

 resembles reduced small-leaved forms of G. Fremoatii, but has the 

 leaves more shortly petioled and the flowers more crowded and axil- 

 lary. 



9. ROUBIEVA, Moquin. 



Flowers perfect or pistillate, solitary or mostly 2-3 together in the 

 axils. Calyx deeply urceolate, 3-5-toothed, in the pistillate flowers 

 much smaller, becoming contracted at the apex and saccate, 3-5-nerved 

 and reticulately veined. Stamens 5, included. Ovary glandular at the 

 top : styles 3, exserted in the pistillate flowers. Achenium membran- 

 ous, glandular-dotted, the styles somewhat lateral. Seed vertical. — 

 A perennial heavy-scented South American herb, with alternate pinna- 

 tifid leaves. 



1. R. MULTiFiDA, Moquin. Prostrate or ascending, diffuse, glan- 

 dular-puberulent, leafy; leaves lanceolate, A-H iiiches long; perfect 

 and pistillate flowers intermingled ; fruiting calyx nearly a line long, 

 obovate ; pericarp membranous, persistent. — Rarely occuri-ing in some 

 of the Atlantic states. 



Chenopodium muUiJidum, Linn. Gray, Manual, 408. 



Rouhieva multifida. Moquin, Ann. Sci. Nat. 2. 1. 292, t. 10; DC. Prodr. 

 V6K 80. Carey, Am. Jour. Sci. 2. 7. 167 ; Bot. Zeit. 8. 528. Gray, Man- 

 ual, 2 ed., 364. Smith, Proc. Acad. Phil., 1867, 22. 



10. BLITUM, Tourn. 

 Flowers perfect or pistillate, bractless. Calyx 2-5-parted or -cleft, 

 unchanged in fruit or fleshy and juicy, not appendaged. Stamens 1-5. 

 Styles 2. Fruit compressed, vertical, partially enclosed in the ap- 

 pressed calyx. Pericarp usually not adherent to the compressed- 

 globose or lenticular seed. Embryo surrounding the albumen. — Herbs, 

 mostly annual, with alternate petioled leaves and densely clustered 

 flowers. 



§ 1. Annual or biennial, glabrous. Flowers in axillary heads or the 



uppermost interruptedly spicate. Calyx becoming more or less 



fleshy. 



1. B, RUBRUM, Reich. Stout, erect, 1-3 feet high, branched and leafy ; 



leaves triangular-hastate to lanceolate, 2-3 inches long, acute, cuneate 



