PLUMERIA 



POA 



2723 



winter. Propagation is by cuttings in February or 

 March. 



A. Fls. more or less rosy. 



rubra, Linn. FRANGIPAM. Low tree or shrub: Ivs. 5- 

 8 in. long: cymes spreading; corolla-lobes broadly oval, 

 longer than the tube. Mex. to Guiana and Ecuador; 

 naturalized in W. Indies. B.R. 780 (fls. chiefly golden, 

 only the tips bright rose). B.M. 279. In W. Indies 

 sometimes called "West Indian red jasmine." 



AA. Fls. chiefly white or yellow. 

 B. Lvs. narrow, oblong-linear. 



ilba, Linn. Lvs. rounded or acuminate at top, revo- 

 lute at margin, tomentose beneath; veins rectangular- 

 transverse: fls. white. W. Indies. P. hypoleuca, Gasp., 

 is probably- a color variety, with yellow fls. 



BB. Lvs. wedge-shaped to lanceolate. 

 acutifdlia, Poir. (P. acumindta, Ait.). FRANGIPANI. 

 Figs. 3081, 3082. Lvs. acuminate, often 1 ft. or more 

 long, 3 in. wide, broadly lanceolate, with a long taper- 

 ing base: corolla-lobes oval. Mex. B.M. 3952 (fls. 

 white, much flushed from the center with pale vellow). 

 P. acuminata of B.R. 114. H.U. 4, p. 161, with its 

 narrow oblong lobes and close well-defined golden 

 center, may be a different species though commonly 

 considered the same. Cult, in all tropical countries 

 for the fragrant whitish fls.; flowers all the year. 

 Also known as the temple-flower and graveyard- 

 flower. 



The following species have been intro. and more or less cult, 

 abroad: P. bicolor, Ruiz & Pav. Tree, up to 40 ft. high: Ivs. oblong, 

 acuminate, margins revolute: fls. white, yellow at throat. Peru. 

 B.R. 4SO. J.H. III. 56:19. P. Jamesonii, Hook. Four feet high: 

 Ivs. mostly at tips of branches: fls. yellow, deeply tinged with red. 

 Ecuador. B.M. 4751. P. Lambertiana, LindL Ten feet high: Ivs. 

 oblong, acuminate, flat: fls. white, yellow-throated, with broad- 

 rhomboid obtuse segms. May to Aug. Mex. B.R. 1378. P. 

 liitea, Ruiz <fc Pav. Ten to 20 feet high: Ivs. crowded at ends of 

 branches, 8-18 in. long, oblong-ovate: fls. white, flushed very pale 

 pink with a broad pale golden yellow center. Peru. B.M. 5779. 

 G.C. III. 39:406. P. tricolor, Ruia & Pav. (P. Kerii, Don). 

 Fifteen feet high: Ivs. obovate-oblong, tapering at both ends: fls. 

 with a yellow throat, white above the yellow and bright rose around 

 the segm. margin. July-Oct. Peru. B.R- 510. P. tvberculafa, 

 Lodd. Six feet high: branches tuberculate: Ivs. coriaceous, narrow- 

 oblong, tapering into the petioles: fls. white, scentless. Aug. Santo 



Domingo - WILHZLM MILLER. 



F. TRACY HuBBARD.t 



3082. Flowers of Plumeria 

 acutifolia. (XJi) 



POA (ancient Greek name for grass or fodder). 

 Graminex. Mostly perennial grasses of low growth, 

 several species of which are cultivated for forage and a 

 few for ornament. 



Spikelets 2-6-fld., in open panicles; glumes shorter 

 than the lemmas, awnless; lemmas keeled on back, 

 membranaceous, scarious-margined, awnless, 5-nerved, 



3083. June-grass. Poa pratensis. 

 ( X Ji; flower enlarged) 



often cobwebby at base. About 100 species, natives 

 of temperate ajid cold regions. 



A. Plants tufted, without creeping rootstocks. 



trivialis, Linn. ROUGH-STALKED MEADOW-GRASS. 

 Resembles P. pratensis, from which it differs by having 

 no creeping rootstocks, taller sts., scabrous sheaths, 

 branches of panicle 

 more slender and 

 spreading, usually only 

 2-fld. spikelets, the 

 lateral nerves of lemma 

 much more conspicu- 

 ous. Native of Eu., 

 where it is a promi- 

 nent pasture grass; 

 rather sparingly cult, 

 in this country, where 

 it is recommended for 

 wet pastures. Dept. 

 Agric., Div. Agrost., 

 Bull. No. 17:243 A 

 variegated form is de- 

 scribed as var. fdliis 

 albo-vittatis. F.S. 16: 

 1695. 



nemoralis, Linn. 

 WOOD MEADOW- 

 GRASS. Panicle long 

 and narrow, with short 

 branches; culms 1-3 

 ft. ; glumes 3-nerved, 

 acuminate. Native of 

 E u. Recommended 

 for pasture or lawn in 

 shaded situations. 



AA. Plants producing creeping rootstocks, thus forming 



a sod. 



B. Fls. dioecious. 



arachnifera, Torr. TEXAS BLUE-GRASS. Culm 2-3 

 ft. high; panicle contracted, 3-8 in. long; spikelets J^in. 

 long; first glume 1-nerved, second 3-nerved; lemma 

 copiously webby-hairy at base. A native of Texas, 

 where it is a valuable forage grass. It prop, by rhi- 

 zomes and forms a dense sod. Recommended as a win- 

 ter pasture-grass in the S. Easily distinguished from 

 the other species by its contracted panicle and large 

 spikelets. Dept. Agric., Div. Agrost., Bull. No. 17:246. 



BB. Fls. perfect. 



compressa, Linn. Known in the trade as CANADA 

 BLUE-GRASS (though it is probably not native to 

 Canada) and ENGLISH BLUE-GRASS, but the latter 

 name is often applied to Festuca pratensis. Distin- 

 guished from P. pratensis, which it resembles, by its 

 blue-green foliage, distinctly flattened culms, and its 

 short and much contracted panicles. Spreads by rhi- 

 zomes. Native of Eu. and. extensively naturalized in 

 this country, being found in open and rather sterile 

 soil. Dept. Agric., Div. Agrost., Bull. No. 17:248. 

 It is of little value as a pasture grass except possibly 

 on sterile soil. 



pratensis, Linn. KENTUCKY BLUE-GRASS. JUNE- 

 GRASS. Fig. 3083. Panicle pyramidal, open, usually 

 3-4 in. long; spikelets 3-6-fld., Kin. long; first glume 

 1-nerved, second 3-nerved; lemma cobwebby at base; 

 culm usually 1-2 ft. high, forming a sod with its copious 

 rootstocks, its long soft basal Ivs. producing an abun- 

 dance of foliage. Native in the cooler regions of the 

 northern hemisphere. Dept. Agric., Div. Agrost., Bull. 

 No. 20:148. A common pasture-grass through the 

 middle part of the U. S. Its most important horticul- 

 tural use is for lawns, for which purpose its habit and 

 aggressiveness are eminently adapted. 



A. S. HITCHCOCK. 



