54 USEFUL PLANTS OF GUAM. 



shrub with a dense habit of growth, small sessile leaves, and axillary 

 flowers with r»-parted perianths. On the windward side of the island, 

 and near the southern en<l on the leeward side, growing in the sandy 

 heacli at the very margin of the sea are groves of Caniud-ind eipihctl- 

 folla (PI. XLI), trees witl] tufts of linear, leafless, jointed branches 

 resembling horsetails (Equisetum) and cone-like fruit. Among other 

 beach plants are the composites Steimnodontia biflora, S. canesceiiK^ 

 Kclipta (dha^ the recentl}' introduced Synedrella nodiflora., and the 

 bid(Mis-like Glossogyne tcnuifolia; and in places there are mounds 

 formed by Sesuvhmi portidacciHti'um^ the "sea purslane," often asso- 

 ciated with creeping grasses. Coconuts are abundant on the west 

 coast of the island (PI. I), but almost absent from the east coast. 



THE INNER BEACH. 



The principal trees forming the inner beach growth are Barring- 

 tonia speciosa, Barringtonia racemosa^ Terriiinalia catappa^ Heritiera 

 littoralis^ Pariti tiliaceum^ Thespesia ^popidnea^ Ochrosia mariannensis, 

 Uernandia p)Mata^ Artocmpus communis^ Calophyllurii inophyllmn^ 

 and Morinda citrifolia. Beneath their shade grow the white-flowered 

 amaryllis ( Crinum axiaticum)^ the grasses, Stenotaphrum suhidatuin and 

 Centotheca lapjxicea,, and the shrubb}^ Boerlumvla dtjfum^ Vitex trifolia, 

 and Meibomia umhcllata. Climbing on the trunks of trees are a num- 

 ber of ferns, including Phymatodes phymatodes (PI. LXII), with leath- 

 ery lobed fronds, Oyclopdiorus adnascens^ with small, linear-lanceolate, 

 simple fronds, Davallia solida^ with beautiful, glossy, divided fronds, 

 and Humata lieteropliylla^ with fertile fronds difl'ering from the sterile 

 in shape (PI. LIII). In addition to the above-mentioned species there 

 are a number of shrubs growing in the vicinity of the beach — the 

 beach plum {Xhnenhi ainerlcaiui)^ Clerodendro7i inermis^ with white, 

 honeysuckle-like flowers and exserted pink stamens; Acacia farne- 

 siana, with globular, yellow heads of fragrant flowers; Leucaena glauca, 

 with similar heads of white, inodorous flowers; and the custard apple, 

 Annona reticulata^ the only species of this genus which grows sponta- 

 neously on the island. Twining among these shrubs are several 

 species of Convolvulaceae, including Ipomoea choisiana and I. marian- 

 neiisis, with purple flowers; the lavender-flowered "alalag"" (Argy^'eia 

 tiliaefolia)^ the flowers of which, called "abubo," are strung into gar- 

 lands by the children; and 6>^grci^Zmt*jyeZi!j^^rt, which has white flowers. 



THE CLIFFS. 



On the promontory of Orote on the west coast, that of Kiroga on 

 the east near Talofofo Bay, on the rocky island of Cabras, or Apapa, 

 and on the edges of cliffs are usually found the following plants: Cor- 

 migonii8 tnarlannensis^ a shrub or small tree belonging to the Rubi- 

 aceae, with large, white, four-parted, trumpet-shaped flowers; Oycas 



