34 
CONTRIBUTIONS TO BOTANY. 
characters of Calycera. Upon these features we may remark 
that Richard (Mem. Mus. vi. 34), in his description of the typical 
species, Calycera Cavanillesii, shows that the leaflets of the invo- 
lucre are wanting, and flgures the reeeptacle as globose, both 
in that species and in C. balsamitafolia [1. c. pi. 10 a and 10 b). 
There does not exist, therefore, a single feature in Gymnocladus 
distinct from Calycera. In DeCandolle^s Monograph of the 
family, he enumerates only two species of this genus : four other 
species are here contributed, with the following amended generic 
character : — 
Calycera, Cav.,Rich. — Char, reform. : Involucrum polyphyllum ; 
foliola 5-7, uniserialia, imo ad torum accreta, subinsequalia, 
lineari-lanceolata, Integra vel serrata, patentia, ssepe abortiva. 
Receptaculum convexum, subglobosum, carnosum, amplum, 
paleis spathulato-linearibus acutis inter flores onustum. 
Flores dissimiles et promiscui. Calyx tubulosus, tubo ad 
ovarium omnino adnato, margine parvo libero 5-dejitato, 
dentibus aequalibus, acutis, concavis, mucronatis, saepe demum 
inaequaliter excrescentibus. Corolla ovario multoties longior, 
tubo gracili fauce campanulato, limbi 5-fldi laciniis oblongis, 
apice crassiusculis, acutis, paulo expansis. Stamina exserta, 
filamenta imo in tubura monadelphum contractioni corollse in- 
sertum coalita, superne disjuncta; antherae mediante connec- 
tivo crasso dorsali apiciflxae, imo syngenesae, apice liberae. 
Ovarium oblongum, 5-sulcatum, tubo calycino breviori adna- 
tum, hinc apice conico liberum, uniloculare, uniovulatum. 
Ovulum pendulum. Stylus filiformis, longe exsertus, apice 
incrassato-clavatus. Stigma parvum, globosum, papillosum.' 
Achcenia plurima, congesta, omnino libera, oblongo-turbinata, 
5-sulcata, lobis calycinis nonnullis (2-3^) longissime elon- 
gatis, subulato-spinescentibus, divaricatis, aliis lobis squama- 
ceis aut abortivis coronata. Semen ordinis. 
Herbae Andicolce et Chilenses; radix fusiformis : folia radicalia 
congesta, lineari-lanceolata, incisa vel dentata ; caulina pauca, 
breviora. Inflorescentia in ramulis terminalis, pedunculo 
scepius elongate, simplici, monocephalo j capitulum subglo- 
bosum. 
1. Calycera Cavanillesii, Rich. Mem. Mus. vi. 34, tab. 10; Remy 
in Gay, Chile, iii. 253 ; M'^eddell, Chi. And. ii. 7 ; — C. herbacea, 
Cav. Icon, iv. 35, tab. 358; — glaberrima, caulibus plurimis, 
subscapiformibus, remote 2-foliatis, substrictis ; foliis radica- 
libus subsessilibus, longo-lanceolatis, acutis, remote semi- 
pinnatifldis, imo in petiolum angustum spathulatis, caulinis 
consimilibus, multo minoribus; capitulo terminali; achaenio 
