150 
CLAVIS SPECIERUM. 
1, Florum masculorum tubus Cintaaiees ; 
petala erecta .. 2 
florum museuloram tubis ‘rotatus ; 5 petal 
patenti wee _ 7 
2. flores Sack 1-3 mm. ree .. 1. micranthus. 
flores masculi 6 mm. longi vl longiores... 3 
3. ovarium setosum ad basin rostri abrupti 4 
ovarium glabrum vel in apicem glabrum 
infra rostrum angustatum; fructus 
glaber vel laxe setosus _ = 5 
4, rostrum longum, pubescens ; Seta 
parvus, globosus, setis mollibus ws» 2, guadalupensis. 
rostrum breve, glabrum ; fructus <psoe 
oblongus, forte spinosus ... 3. horridus. 
5. ovariu labrum vel paueisetosum ; : 
semina globularia, haud zonata 4, Watsoni. 
ovarium fere ad apicem aeias setosum... 6 
6. foliorum lobi oblongi, ad basin — : 
staminodia libera 5. muricatus. 
foliorum obi triangulares, basi lati ; : 
staminodia angusta, stylo adnata ... 6. oregonus. 
7. flores 1 cm, diametro vel sesso’ 
flores ad 7 mm, diametro« « ... 9 
8, 
folia os 30 _om. diametro; flores ga 
1°4 metro; semina 4-8, ad 
35 em. diametro +. 7. major, 
folia ad 14 em. diametro ; ‘Wer ad 1 cm. 
a semina 16, ad 2°5 cm. diam- 
--- & macrocarpus. 
9. Past fortiter dxtas spins tive «. 9. fabaceus. 
fructus glaber vel setis mollibus © ai 10 
10. pedicelli 3 mm. longi... we .-. 10. gilensis. 
pedicelli 6 mm, longi is Sse - Ll. inermis. 
1, M. micranthus, Dunn, sp.nov. Caulis tenuis, striatus, scabridus. 
Folia ambitu orbicularia, dimidio altius palmatim 5-7-lobata, 6-10 cm. 
diametro, supra et in margine brevissimis setis taberculatis scabra, 
lobis oblongis sinuato-dentatis, sinubus rotundatis ; petiolus bis folio 
brevior ; cirrhi tenues, elabri, bifidi. Flores masculi racemosi ; : 
pedunculus communis gracilis, ut pedicelli et perianthii puberulus, 
vix maturus 2 cm. longus ; celli filiformes, 4 mm. longi. 
Calycis tubus areal eh dec 1 mm. longus, lobis obsoletis. Petala 
pre ite acuta, 1-1°5 mm. longa. Columna staminea brevis; 
' antheraram _1 mm. longum, tuba a gates paullo 
eran 6-8-spermus.. Sonia ovata, P38 cens whee 8 mm. 
i onoei it 
ter cincta. 
Lower Carirornia. Cedros Island, Rose 16,159. Flowers 
expanded while the fruit of the previous year is ripe, in March, 
