DESCRIPTIVE CATALOGUE. 355 



sile; male plants with smooth petioles, leaves more membranous; spike (solitary?) 

 dense-flowered, rachis puberulous; stamens 3. 



A common plant in Guam, growing in shady woods in moist situations and near 

 the banks of streams. Its leaves have an aromatic taste much like those of the 

 closely allied kava pepper. 



This species was described by C. De Candolle from a female plant collected in 

 Guam by Chamisso, the type now in the herbarium of Berlin, and from a male plant, 

 perhaps a distinct species, collected by Haenke in Mexico, also in the same her- 

 barium. It was referred by Miquel to Macropiper methysticum and Macropiper 

 lalifolium. a 



References: 

 Piper guahamense C. DC. Prod. 16 1 : 336. 1869. 

 Piper marianum. See Piper betle. 

 Piper nigrum. Black pepper. 



A few plants of black pepper given me by Mr. David Haughs, of the Hawaiian 

 Botanical Garden at Honolulu, were planted by me in Guam. They seemed to be 

 well established in my garden when I left. The climate is evidently adapted to the 

 cultivation of this species. 

 References: 

 Piper nigrum L. Sp. PI. 1 : 28. 1753. 

 Piper potamogetonifolium. 



A dioecious plant with flower-spikes opposite the leaves. Leaves petioled, cordate- 

 ovate, with acuminate apex and equal base, lobes approximate, coriaceous, smooth, 

 glossy, net- veined; petiole sheathing, much shorter than the leaf, smooth; spike 

 cylindrical, much shorter than the leaf, mucronate; peduncle smooth. An under- 

 shrub collected by Haenke on the island of Guam. 

 References: 

 Piper potamogetonifolium Opiz in Presl, Rel. Haenk. I 3 : 156. 1828. 

 Macropiper potamogetonifolium Miq. Syst. Pip. 221. 1843. 

 Piper sp. 



Besides the above species, an epiphytal piper is mentioned by Gaudichaud, called 

 "podpod" in the vernacular of the island. This I have been unable to identify. 

 Piperaceae. Pepper family. 



This family is represented in Guam by Pinter betle, P. guahamense, P. potamogetoni- 

 folium and Peperomia mariannensis. 



Pipturus argenteus. Silvery Pipturus. 



Family Urticaceae. 



Local names. — Handaramai, Hinaramai (Philippines); Fau songa (Samoa); 

 Kongangu, Queensland Grass-cloth Plant (Australia). 



A shrub or small tree, allied to the mamake of the Hawaiian Islands. Young 

 branches covered with whitish wool or pubescence; leaves alternate, petioled, une- 

 qual in size and length of petiole, 3-nerved, ovate or elliptical-lanceolate, rarely cor- 

 date, acuminate or gradually attenuate and acute; petioles varying in length, longer 

 and shorter ones alternating on the branches; old leaves glabrate and smooth on the 

 upper face, crenulate or finely serrulate or nearly entire, unlike in color on the two 

 faces; stipules axillary, deeply bifid; flowers small, growing in axillary clusters of 

 two sexes; male perianth, 4 or 5-lobed, with 4 or 5 stamens and the woolly rudiment 

 of a pistil; female ventricose, 4 or 5-toothed, with filiform stigma; ovule 1, erect; 

 achene nut-like, closely invested by perianth. The inflorescence is arranged either 

 in axillary clusters or in simple interrupted spikes sometimes leafy at the tip. 



« Miquel, Systema Piperacearum, p. 218, 1843-44. 



