366 THE JOURNAL OF BOTANY 



orbicular-ovate, 1-3^ inches long, cordate or sub-cordate at the 

 base, the margin entire or obscurely angled, or hastately three- 

 lobed. The surfaces are densely villous pubescent, and the more 

 or less prominent denticulations are gland-tipped. The petioles 

 are as long as the blades, or shorter. There is a profusion of 

 spiral, axillary tendrils. The flowers are small, pale-greenish or 

 white. The most conspicuous part of the flower is the epicalyx 

 or series of three lace-like pinnatifid bracts ; these are divided into 

 slender segments, the ultimate branches filiform, terminating in 

 glands. These are very viscid. The sepals are pale or somewhat 

 colored; the petals are white, or sometimes flushed with pinkish. 

 The corona is triple-rowed, as long as the petals, and colored 

 purple and blue. The fruits are globular, | inch in diameter, dry 

 and inflated ; the shining rind is bright scarlet. The fruits are not 

 suitable for food, but are eagerly sought by the birds and mice. 

 The former have assisted in the distribution of this species to such 

 an extent that it has now become a pest in certain parts of the 

 lowlands, smothering other vegetation under its vines. Medicinally 

 the plant is used as a narcotic and an expectorant. 



The Granadilla, or Grenadilla (diminutive of " Granada," a 

 pomegranate), is P. quadraiigularis L. It is sometimes called the 

 Large Granadilla, in reference to the size of its fruit. It is native 

 to tropical America, but occurs in many Honolulu gardens, as well 

 as on the other islands. It is a tall, strong, glabrous climber ; the 

 stems are often purplish. The leaves are ovate or orbicular-ovate, 

 cordate, mucronate, entire ; the petioles have two or three pairs 

 of glands ; the stipules are large and showy. A variety variegata 

 Hort. has the foliage blotched with yellow, but this form is not 

 known in Hawaii. The flowers are large, 3-5 inches in diameter, 

 and quite fragrant. The sepals are linear, violet, white within ; 

 the petals are also very narrow, lilac, reddish within. There are 

 five row^s of filaments in the corona ; these are violet with white 

 bars below the middle ; the inner and shortest row is deep violet ; 

 the outermost row exceeds the calyx and corolla. The fruit is 

 oblong, 5-9 inches long, with a pale yellow-green shell. The 

 pulpy interior is succulent, sub-acid, aromatic, with many seeds. 

 According to Wilder this vine requires the presence of bees or 

 artificial pollination in order to ensure a crop ; under ordinary 

 conditions it does not bear as abundantly as some of the other 

 species. The fruit is superior in quality to either the yellow- 

 fruited or purple-fruited species. 



A highly variable species is P. alata Dryand., which may be 

 called the Winged Passion- Vine. P. phoenicea Lindl., P. brasili- 

 ensis Desf., P. maliformis Flor., P. ovaformis Eoem., P. latifolia 

 DC., P. 7nauritia7ia Thouars, etc., are all considered to be forms 

 of this species. It is a native of South America, and is not 

 common in the Hawaiian Islands. As the specific name suggests, 

 the stem is conspicuously winged. The leaves are glabrous, oval 

 to ovate, somewhat cordate at the base ; the margin is often 

 undulate, but otherwise entire. The petioles have two pairs of 

 glands. The flowers are very fragrant, 8-4 inches in diameter. 



