* < 
| Baas ni | RT) {] 
66 feaved asa: about 6 stamens, and is artnet FP bebe 
__ While the last mentioned plants indicate that we approach another bo- 
- tanical region, we are surprised to meet here with Polygonum amp ' 
common in the old and in the new world, and Cephalanthus alis, 
so widely diffused in the United States. 
The ous desert, the Jornada del Muerto, furnished, as was to be 
eee, its quota of interesting plants. A Crucifera near Biscutella, of — 
‘but with very short styles and white flowers, was here met. 
with, abundantly. I had egy ae it as the type of a new genus, when ~ 
I found in Hooker’s London of Botany of February, 1845, Har- 
vey’s description of his new Californian genus aie Be 3 which gio 
bly must be made to embrace our plant as a second species 
tae a 
: Ae He 12 Opuntia clavata, n. sp. prostrata, ramulis ascendentibus, obovato-" . 
x clavatis, taberculatis; ’areolis orbiculatis albo-tomentosis, margine st ' 
} setas albas spinescentes gerentibus; aculeis albis complanatis, radiantibus, 
6-12 es centralibus 4-7 majoribus, longioribus deflexis; floribus . 
© terminalibus; areolis ovarii 30-45 -tomentosis, setas albas 10-15 geren- 
| tibus; mir es inte viebilpding ovato-lanceolatis acuminatis s. Rak seein petalis =) 
obtusis, — na te mucronatis; stigmatibs 7-10 brevibus erectis; bacea, # 
co ie 
, About ‘Albaquerqae (W. ») about Santa Fe, on the high Pane never on — 
the mountains, (Fendler.) Mr. Fendler informs me that the ascending 
oin aps from or near their base, and that in this manner they finally 
spreading mass, often 2 and even f feet in ‘diameter, to 
“which é white ne spines give a very peey | appearance. Joints or 
beanentee 1} to 2 inches long, tubercles at their base smaller, with 
“shorter spines, ike: the upper and thicker end larger, with stouter and 
_ longer spines; radial spines 2 to 4, central ones from 4 to 9 or - lines® 
; ovary 15 lines long, flow yellow, 2 inches in diameter; stigmas 
* only 1} line long; fruit apparefftly dry and spiny, 1} to 13 fech long; 
seeds 8r ther than those of most other opuntiae, rostrate, with a circular 
ryo. Apparently near Opuntiae plat yacanthae, Salm.; but the tuber- 
lt oi and the shape ef the embryo approach it closely to 0. cylin- 
cust Bi yrea, i tise, char. emendat. ae bast sequatia oblo ; 
_ linearia>~Pets la 4 spathulata, basi ampliata. _ tray he of 
x libera tula. us brevissimus, ae iner 
3 ss amas Sheet ata, a la 
y gaia in ie compressa, immarging 
ie diculae descendenti Se op gre? i 
) plants of California and New Mexi nice, eed 
dentate leaves, ee. o. or wei, flowers i 
