DESCRIPTIVE CATALOGUE. 361 



long-petioled, broadly ovate, shortly acuminate, quite entire, smooth on both sides; 

 veins of young leaves puberulent at their axils on upper face, woolly on lower sur- 

 face; terminal panicles corymbose, many-flowered; calyx short, cupuliform, sub- 

 bilabiate, upper lip obscurely bidentate or entire, the lower distinctly acutely 

 bidentate; corolla subequally 4-fid, equaling the calyx tube; leaf 12.5 cm. long, 

 petiole 3.5 cm. long; flowers small, calyx 2 mm. long, stamens 4, didynamous; limb 

 of corolla reflexed, stamens and pistil slightly exserted; drupe small, surrounded 

 below by the calyx. Type specimen collected by Gaudichaud in Guam. Leaves 

 imperfect. The wood of the ahgao is hard and durable, but knotty and often crooked. 

 It is much used in construction by the natives of Guam. It is very much like the 

 molave, or molavin, of the Philippines ( Vitex geniculata), a large forest tree belong- 

 ing to the same family. Like many other Verbenaceae the ahgao has medicinal 

 properties. In Guam its bark steeped in water is used as a remedy for neuralgia. 

 The tree grows in rocky places, and sometimes yields logs 4 meters long by 45 cm., 

 in diameter. Its inflorescence somewhat resembles that of the elder. 

 References: 



Premna gaudichaudii Schau. in DC. Prod. 11: 631. 1847. 

 Premna mariannarum. False elder. 



A shrub or small tree. Leaves short-petioled, oval and subrotund, obtuse and very 

 shortly acuminate or quite obtuse, rounded at base or somewhat cordate, entire, 

 smooth on both sides, axils of the veins woolly on the lower surface, 5 cm. long; 

 petioles 12 mm. long; flowers in small terminal, corymbose, panicles; calyx cupuli- 

 form, bilabiate, the upper lip very shortly truncate, the lower rounded, entire; 

 corolla subequally 5-cleft, bearded, equaling the calyx tube; stamens exserted; calyx 

 2 mm. long; branchlets, panicles, petioles of leaves, and veins on both sides sub- 

 canescent. 



References: 



Premna mariannarum Schau. in DC. Prod. 1 1 : 632. 1847. 

 Prickly pear. See Opuntia sp. 

 Pride of India. See Melia azedarach. . , 

 Procris candolleana. HN/ 



Family Urticaceae. 

 Collected by Gaudichaud in Guam. Not further known; it is possibly Pipturus 

 argenteus. a 



Procris divaricata. Same as Pellionia divaricata. 

 Procris paniculata. Same as Schychovvskya ruderalis. 

 Procris pedunculata. Same as Elatostema pedunculatum. 

 Procris torresiana Endl. Same as Elatostema pedunculatum. 



Psidium guajava. Guava. 



Family Myrtaceae. 

 Local names. — Abas (Guam); Bayabas (Philippines); Guayava, Guayaba 



(Spanish). 

 An introduced shrub or small tree, bearing the fruit from which the well-known 

 guava jelly is made. Young branches pubescent; leaves short-petioled, opposite, 

 entire, ovate or oblong, usually acuminate, glabrous or nearly so above, softly pubes- 

 cent beneath, and with the principal nerves prominent; flowers large, white, 1 to 

 several on a common peduncle, which grows from the axils of the leaves; calyx 

 undivided at first, separating into 4 or 5 lobes when in flower; petals 4 or 5, free; 

 stamens many, forming a brush-like tuft; ovary 2 or more-celled with many ovules 

 in each cell; fruit globose or pear-shaped, many seeded, seeds with hard testa. 



«See Voyage of the Uranie, p. 500, 1826. 



