516 Mac CAuGHEY: GUAVAS OF HAWAIIAN ISLANDS 
peltate or subcapitate. The fruit is a berry, in shape ovoid, 
globose or pyriform, and about 2.5-7.5 cm. long and crowned 
with the calyx-limb. The skin is thin and delicate, yellow to red 
in color, sometimes, green. The seeds are few to numerous, 
small, hard, kidney- or horseshoe-shaped; the embryo curved, with 
a long radicle and short cotyledons. The guavas are all readily 
propagated from seed, and often fruit the second year from seed. 
The fruit of none of the horticultural forms is suitable for shipping, 
as it is too delicate, and ripens too quickly.* 
THE ComMoN YELLOW Guava , 
This species, P. Guajava L., in its several forms, is the most 
abundant representative of the genus in the Hawaiian flora. 
It is also called lemon guava, or wild guayaba although these 
names are not distinctive. The Spanish name is guayaba, and 
the aboriginal Mexican name, xalxocoil. It ranges from Mexico 
to Central America and Peru. It is highly variable, and has 
many horticultural forms, which are not thoroughly known. The 
two varieties that are commonly given in the literature, ‘‘ pomi- 
ferum” and “‘pyriferum,” referring to the shape of the fruit, 
are no longer given botanic status, as they represent indefinite 
variations. In California a variety is known to the trade as 
“Hawaiian Guava’’—it has a yellow skin and pink flesh—but 
has not been demonstrated to be a genuine variety. 
* Engler & na (Nat. Pflanzenfam 37: 67-69), give the following character- 
ization of the g 
sidin 
mL, ag cca cae Calyptropsidium eos. Mitranthes Berg z. T.) DiGteneens 
mietat iaeasaracites liber den Frkn. hinau 
einzelnen B. oder unregelmissig ere sehr selten haubenartig abgesprengt. 
A. oval bis linear, dorsifix. N. knopfig; m i 
Achse verwachsen, so dass die Placenten uous bleiben und in jeder Kammer einen 
oblongen Kranz bilden.—Alles iibrige wie bei Myrtus; nur die (meist behaarten) 
B. und die BI., iberhaupt die ganzen Pfl., durchschnittlich kraftiger. 
Derg synopsis of the genus, with typical species, is: 
APERTIFLORA Ndz. 
A. OBLONGIFOLIA Ndz.: P. ciliatum Benth.; P. area Aubl. 
. OBVERSIFOLIA Berg.: P. Cattleyanum Sabin 
- ALBOTOMENTOSA Berg: P. incanescens Mari: fe grandifolium Mart. 
Sect. 2. PE ois Ndz. 
A: InTEGRiFoLIA Ndz.: P. Guayava Raddi; P. Araga Raddi. 
B. CRENATIFOLIA Berg: P. striatulum DC.; P. fluviatile Rich. 
Sect. 3. CALYPTROpsipiuM Berg: P. eugenioides (Comb.) Ndz. 
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