262 
CONTRIBUTIONS TO BOTANY. 
going, but has no tangible differential characters; it is of a 
darker olivaceous hue, and quite glabrous ; the primary spines 
are 8 lines apart and 1^ to 2 inches long, the secondary spines 
3 lines apart and 6 to 9 lines long; the pedicels line long, 
and the flowers are like those of the preceding. 
14. Colletia dumosa, n. sp. ; — suffruticosa, humilis, ramosissima, 
intricato-spinosa, fusco-viridis, ramulis tortuosis, teretibus, 
creberrime spinosis, parce pilosulis, spinis interdum ternatim 
verticillatis, iterumque spinulosis, spinulis oppositis, brevibus, 
teretibus, crassis, substriatis, imo et medio floriferis, apice 
callo glauco nitente pungentibus; folds caducissimis, aut 
nullis; floribus albis 2-5, fasciculatis, glaberrimis, spinulis 
longioribus, e tuberculo squamoso ortis, fragrantibus, calyce 
pedunculo subsequilongo, imo tumido et 5-sulcato, medio 
constricto, limbi laciniis 5 aeutis, reflexis, staminibus 5 la- 
ciniis fere aequilongis, erectis, antheris parvis, viridibus, stylo 
exserto, fructu 3-cocco. — Chile. — v. v. ad Concon, in dumetis 
arenosis maritimis frequens : vern. Junco. — v. s. hi herb. Mus. 
Paris : Chile (Gay, sub C. ferox) : Chile (Gay, sub C. spinosa) : 
Chile boreali (Poppig) ; in arenis humidis, Talcahuano 
(Lechler, 2794). 
The drawing and floral analysis I made of this plant thirty- 
five years ago are still preserved, but my speeimens were lost by 
shipwreck. I have still many of its seeds, which enabled me to 
investigate the seminal structure given in a preceding page. 
The species is closely allied to C. armata, but differs in its much 
closer axils and much shorter spines; the floral pedicels are 
more elongated, and the stamens are longer and more exserted. 
The primary s'pines or branchlets are 2-3 inches long, the se- 
condary spines are 8-10 lines long and 3 lines apart, the ter- 
tiary spinelets are 4-5 lines in length and 2 lines apart; the 
secondary spines, often opposite, are frequently ternate; the 
pedicels are 2 lines long; the tube of the calyx, which is cylin- 
drical and somewhat swollen at the base, is 2^ lines, and the 
segments 1^ line long and | hne diameter ; the filaments are 
erect, and | line long*. 
15. Colletia veprecula, n. sp. C. spinosa, var. pubescenti-incana. 
Hook. Bot. Misc. i. 154; — suffruticosa, intricato-ramosissima, 
ramulis strictis, teretibus, pulverulentis, spinis oppositis, in- 
terdum ternis, crebre decussatim spinulosis, puberulis, spinulis 
brevibus, approximatis, striatulis, apice callo rubro nitente 
pungentibus; folds parvulis, late obovatis, apice rotundis, 
* A drawing of this species, with analytical details of the structure of the 
seed, is given in Plate 36 a. 
