CYRTANDREAE HAWAIIENSES, SECT. CROTONOCALY- 
CES HILLEBR. 
Joseph F. Rock 
Section Two: Crotonocalyces Hillebr. Fl. Haw. Isl. 325. 1888 
Calyx cleft to the middle or less into broad lobes or teeth. Leaves 
broad, generally rounded or cordate, truncate, peltate or unevensided 
at the base. Young shoots, leaves, and inflorescence villous with 
golden or dark brown multicellular hairs. 
This section comprised originally eight species and two varieties, 
C. cordifolia, C. Pickeringii, C. honolulensis, C. hegoniae folia, C. , 
malacophylla, C. platyphylla, C. Wazvrai, and C. Kealiae. Hillebrand's 
var. crassifolia of C. Pickeringii which has been raised to specific rank 
by the writer (C. crassifolia (Hillebr.) Rock), and Hillebrand's var. /5 
of C. platyphylla (now C. platyphylla var. hiloensis Rock) were the two 
recognized varieties. A possible ninth species is C. B. Clark's Cyr- 
tandra haccifera. This species is, however, of doubtful validity. It 
belongs in all probability to some form of C. platyphylla A. Gray. 
To the species and varieties above enumerated there have been 
added the following: new species, Cyrtandra mauiensis, C. ti7iiinnabida, 
C. Knudsenii, and C. caidescens ; new varieties, Cyrtandra cordifolia 
Gaud. var. gynoglahra Rock, C. mauiensis Rock var. truncata Rock, 
C. malacophylla C. B. Clarke var. erosa Rock, C. platyphylla A. Gray 
var. robusta Rock, var. menibranacea Rock, var. stylopubens Rock, 
var. parviflora Rock; and one new form, Cyrtandra platyphylla sty- 
lopiibens forma ovata. One species, Wawra's Cyrtandra honolulensis , 
has been reduced to a variety as C. Pickeringii var. honohdensis . It 
differs from the species only in the pubescent ovary and membranous 
leaves. One variety, C. Pickeringii var. crassifolia Hillebr., has been 
raised to specific rank as C. crassifolia (Hillebr.) Rock. Hillebrand's 
var. 3 of Cyrtandra platyphylla has been given a varietal name, hiloen- 
sis. Cyrtandra paritiifolia Hillebr. was found to be identical with 
C. malacophylla C. B. Clarke, and the latter, an earlier name, was 
adopted. This brings the Hawaiian species in this section to twelve 
(possibly thirteen) species, eight varieties, and one form. 
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