6 Mr. J. Miers on the Tribe Colletiese. 



elongated branchlet, on which the leaves are distributed in pairs, 

 "by distinct intervals, and towards the extremity become abor- 

 tive, when the flowers assume a spicated or racemose appear- 

 ance. I have defined its generic features in the following 

 manner : — 



Talguenea, nob. — Calyx petaloideus, turbinato-tubulosus, 

 membranaceus, 10-nervis, fere ad medium 5-fidus, laciniis 

 oblongis, acutis, 3-nervatis, apice callosis, sestivatione valvatis, 

 demum reflexis, tubo intus piloso, persistens, immutatus et 

 marcescens. Petala 5, erecta, laciniis sequilonga et alterna, 

 rotundato-oblonga, concava, subcucullata, unguiculata. Sta- 

 mina 5, petalis inclusa et cum unguibus inserta; filamenta 

 tenuia, pilosa, complanata, medio carinata, margine membra- 

 nacea et ciliata, apice repente inflexa; antherce parvse, reni- 

 formi-rotundatse,2-lobse, lobis 2-valvatis,valvula antica breviore, 

 et hiuc rima hippocrepica latissime hiantes. Discus fere ob- 

 soletus, calyci adnatus, ovarium fulciens et ejus diametrum vix 

 excedens, cum toro confusus. Ovarium super um, disco pau- 

 lulo immersum, 3-loculare ; ovula erecta, in loculis solitaria. 

 Stylus filiformis, longe exsertus, ultra medium patentim hir- 

 sutissimus, superne glaber, profunde 3-sulcatus. Stigma bre- 

 viter 3-lobum, lobis obtusis, adpressis, glutinosis. Fructus 

 carcerularis, chartaceus, valde hirsutus, oblongus, calyce im- 

 mutato inclusus, eo paulo longior, stylo persistente termi- 

 natus, indehiscens, 3-locularis, ssepius abortu 2- vel 1-locu- 

 laris, loculis monospermis. Semen ovatum, lenticulari-com- 

 pressum, structura omnino ejus Colletics. 



Arbusculse Chilenses valde ramosce, ramulis confertis, tortuosis, 

 decussatim divaricatis et oppositis, junior ibus brevibus et spi- 

 nosis ; folia integra, oblong a, in petiolum brevem cuneata, sub- 

 5-nervia, nervis parallelis costata, supra glauca f infra albido- 

 sericea, e tuberculo majusculo infra spinam egrediente cum flo- 

 ribus glomeratim congesta ; flores fasciculati, albescentes, 



1. Talguenea costata, nob., Trav. ii. 529; Hook. Bot. Misc. iii. 

 174 ; — Trevoa 5-nervia, Gill, et Hook. ibid. i. 158, tab. 45 b.; — 

 Colletia Tralhuen, Bert. Colla, Mem. Torin. 37. p. 53, tab. 7 ; 

 — arbuscula orgyalis, ligno duro rubro, tortuose ramosissima, 

 ramulis fuscis, cinereo-tomentosis, spinosis, spinis decussatim 

 oppositis, validiusculis, subulatis, folio subbrevioribus ; foliis 

 oppositis, vel e gemma squamosa sub singula spina enata 

 plurimis aggregatis, oblongis, mucronatis, basi cuneatis, 

 supra glauco-viridibus, parce pubescentibus, subtus pilis ad- 

 pressis incanis sericeis, nervosis, nervis 5-7 subparallelis su- 

 perne immersis, et hinc profunde sulcatis, subtus nervis cos- 

 tato-promincntibus, petiolo breviusculo, sericeo ; stipulis 



