FLORA OF THE HAWAIIAN ISLANDS. 237 



tinct stamens, perigynous. Ovaries with one, two, or few ovules. Al- 

 bumen none. Embryo straight with large cotyledons. The three 

 suborders are distinguished as follows : 



AMYGDALE.E, has the solitary ovary free from the deciduous calyx, 

 with two suspended ovules and a terminal style. Trees or shrubs. 

 Here belong the peach and almond (species of Amygdalus), the Plum 

 and cherry (species of Prunus), &c. 



ROSACES PROPER, in which the ovaries are numerous (or rarely few 

 or solitary) and free from the calyx (which is often bracteolate as 

 if double), but sometimes enclosed in its persistent tube, in fruit 

 becoming either follicles or achenia. Styles terminal or lateral. Herbs 

 or shrubs. The Rose (.Rosa), Raspberry and Blackberry (Eubus), 

 Strawberry (Fragaria), the Spiraea of the gardens, &c., belong here. 



POME^E, with the two to five ovaries cohering with each other and 

 with the thickened and fleshy or pulpy calyx-tube (thus the ovaries 

 inferior) ; and each with one or two, or in the Quince several, ascend- 

 ing seeds, is familiar in the Apple, Pear (Pyrus), &c., and is repre- 

 sented with us by Osteomeles. 



Calyx free from the ovaries. 



Petals 5. Stamens and carpels indefinite. 



Calyx without bractlets. Fruits slipping off the dry recep- 

 tacle as a thimble. Shrubs, 1. RUBUS. 



Calyx with 5 bractlets, thus appearing 10-lobed. Fruits not 



separating from the juicy receptacle. Herbs, 2. FEAGAKIA. 



Petals none. Stamens 1- 10 short. Carpels 1 or 2. Herbs with pin- 

 nate leaves, 3. AC.ENA. 



Calyx cohering with the ovaries. Shrub, 4. OSIEOMELES. 



1. RUBUS Linn! [Akala.] 



Calyx free, deeply 5-lobed, persistent. Petals 5. Stamens numer- 

 ous. Carpels numerous, with two pendulous ovules in each. Fruit 

 a kind of granulated berry, formed by the union of the succulent 

 carpels, round the conical or shortly oblong, dry receptacle. Weak 

 scrambling shrubs, or sometimes herbs, usually prickly. Leaves pin- 

 nately or palmately divided into distinct segments or leaflets, or rarely 

 simply lobed. Flowers axillary, or in terminal leafy panicles. 



A large genus, widely distributed over most every part of the globe. In the Rasp- 

 berry section of the genus the drupaceous fruits cohere with one another and come off 

 the dry receptacle, which, on the contrary, in the Blackberry section, becomes juicy and 

 does not separate from the fruits. 



1. R. HAWAIENSIS Gray. (Enum. No. 123.) A weak-stemmed 

 shrub 10-15 high, the stems 1' or 2' in diameter at the base. The 

 young branches, petioles, &c., tomentose-pubescent, flexuose, usually 

 armed with small straight or hooked bristly prickles, at length glab- 

 rate. Stipules filiform or setaceous, 3" - 4" long. Leaves trifoliolate. 

 Leaflets ovate, acuminate or acute, obtuse or truncate at the base, 



