2054 



MIMOSA 



MIMULUS 



tive as M. pudica. The word pudica is Latin for modest 

 or bashful. 



AA. Plant distinctly woody: trees or bushes. 



B. Primary pinnse 1 pair. 



Spegazzinii, Pirotta. Bush, scandent and much 

 branched, with recurved spines at base of petiole: Ivs. 

 sensitive, bipinnate; pinnae 2, from 2-3 in. long; Ifts. or 

 pinnules very numerous, sessile and close together, 

 oblong or linear-oblong and acute, 3-nerved: fls. rose- 

 purple, in globular peduncled heads \% in. diam., the 

 heads axillary or in a terminal raceme; corolla 4- 

 lobed; filaments rose-red and anthers yellow: pod 1 in. 

 long, linear. Argentina. B.M. 7899. G.W. 2, p. 19. 

 A good greenhouse shrub; intro. in S. Calif. Var. 

 glauca, Hort., has glaucous foliage and whitish fls. 



BB. Primary pinnse 2 pairs. 



guayaquilensis, Steud. (Acacia guayaquilensis, Desf.). 

 Pinnse 4, with 3-5 pairs of ovate-obtuse glaucous Ifts., 

 of which the lower ones are smaller; opposite stipular 

 spines at the base of the If. Ecuador. 



albida, Humb.& Bonpl. Scandent, shrubby: branches 

 cano-pubescent, spiny: pinnae 2, each with 4 Ifts., the 

 inner ones of the lower pair very small, the others 

 oblong and very unequal at base and acute at apex; 

 petioles unarmed: fl.-heads twin, pinkish: pod about 

 1 in. long, grayish pubescent. Mex. to Peru. L.B.C. 

 3:249 (as M. sensiiiva). Intro, in S. Calif. 



BBB. Primary pinnx 8-5 pairs. 

 Ceratdnia, Linn. (Acacia Ceratdnia, Willd.). Scan- 

 dent glabrous shrub, with recurved prickles on branches 

 and petioles: pinnae about 5 pairs; Ifts. obovate to 

 roundish: pods glabrous, somewhat articulate and 

 spiny, broadly oblong. W. Indies. 



BBBB. Primary pinnse mostly 6-8 pairs or more. 



acanthocarpa, Poir. (Acacia acanthocdrpa, Willd. 

 A. brachyacdntha, Humb. & Bonpl.). Bush or small tree: 

 pinnae 12-14, with 6-15 pairs of oblong-pubescent Ifts. : 

 stipular spines 2: fls. in heads on twin axillary pedun- 

 cles : pod falcate, spiny . Mex. 



Denhardtii, Hort. Ornamental shrub, the Ivs. said 

 to be almost as sensitive as those of M. pudica: branches 

 glabrous or minutely hairy, striate, usually bent at 

 each thorn: Ivs. hairy, the pinnae 12-14, the ultimate 

 Ifts. small (J^in. long) and crowded and falcate-oblong- 

 acute: fls. in club-shaped, axillary clusters: thorns 1-3 

 in. long. S. Amer. Intro, in S. Calif. 



rubicaulis, Lam. Low tree, with many small hooked 

 spines: pinnae 8-20, the rachis prickly; Ifts. 12-24, 

 thin, J^in. or less long: heads reddish but becoming 

 lighter colored, about M m - long, on short simple 

 peduncles; corolla very small: pod strap-shaped and 

 somewhat falcate, 3-4 in. long. India, Afghanistan. 

 Intro, in S. Calif. 



M. argentea, Hort. Of climbing habit, suitable for warmhouse, 

 said to be of the same section of the genus as M. pudica, slender, 

 the sts. and branches hairy: pinnse 2 or 3 pairs; Ifts. about 40, oblong 

 pinkish on the under side (as are the young shoots), green at the 



tips and silver-gray on lower half. Brazil. 



L. H. B. 



MIMULUS (Lathi, a little mimic, from the grinning 

 fls.). Scrophulariacese. Mostly herbs (annual or peren- 

 nial) with interesting irregular flowers in many colors, 

 some of them border subjects and others flower-garden 

 plants. 



Low plants (sometimes shrubby), decumbent, ascend- 

 ing or erect, glabrous or pilose and often clammy: Ivs. 

 opposite, entire or toothed: fls. axillary, solitary or 

 becoming racemose by the reduction of the upper Ivs. ; 

 calyx Dangled, with 5 short or long teeth; corolla-tube 

 cylindrical, sometimes swollen at the throat ; stamens 4, 

 didynamous: caps, oblong or linear, loculicidally dehis- 

 cent. Species probably 60 or 70, if Diplacus, Eunanus 

 and Mimulastrum are included, mostly in extra- 



Trop. Amer., but some in Asia, Austral, and Afr. The 

 genus is specially rich in W. N. Amer. This genus 

 includes the monkey-flower, M . luteus, and the musk- 

 plant, M. moschatus. Monkey-flowers are something 

 like snapdragons, although they do not have a closed 

 throat. They are 2-lipped fls., with 2 upper and 3 lower 

 lobes, which are all rounded and usually irregularly 

 splashed and dotted with brown on a yellow ground. 

 Though perennial, they are commonly treated as 

 annuals and are considerably used for pot cult, in winter, 

 as well as for summer bloom outdoors. The musk- 

 plant is grown for its scented foliage and pale yellow fls. 

 It is sometimes used in hanging-baskets, but the foliage 

 is so sticky that it gathers too much dust. The kinds 

 described below are all perennial at least by under- 

 ground parts (except M. brevipes), and most of them 

 are natives of wet and shady places in N. W. Amer. They 

 mostly grow 1-3 ft. high and bloom all summer. Dip- 

 lacus is here included in Mimulus. 



Mimulus plants (M. luteus) can be increased by sow- 

 ing seed from January to April in pans of light sandy 

 soil. They like a mixture of loam, leaf-mold and sand 

 in equal parts. They may be kept in a temperature of 

 60 until they show signs of coming up, when they 

 should be placed in a house that stands at about 50 

 during the night. As soon as the seedlings can be hand- 

 led, they should be potted off into small pots and 

 grown along in as cool a house as possible. The early- 

 sown plants can be planted out in May in a cool 

 shady situation, where, if they can have enough water 

 to keep the roots moist, they will bloom fairly well. 

 Those that are sown late can be grown on by shifting 

 into 2-, 3-, 4- and 5 -inch pots, using a compost of 

 fibrous loam three parts, well-decayed cow-manure 

 one part, and enough sand to keep the compost open. 

 In the summer these may be grown outside in frames 

 covered by lath shading. Late in autumn they may 

 be brought into a coolhouse with 45 to 50 night 

 temperature. Give them a place near the glass, and 

 with care as to watering and ventilating they will 

 bloom satisfactorily. They can also be increased from 

 cuttings taken in the early spring. M. moschatus can 

 be grown from seed and cuttings. They may be 

 planted out in a partly shaded situation, where they 

 will grow all summer. In the autumn, lift some of 

 the clumps and pot them. These may be grown in a 

 coolhouse of about 45 at night. In the spring, when it 

 is desired to increase the stock, take pieces of the new 

 growth and place them around the side of a 3-inch pot, 

 using the compost mentioned above; by keeping moist 

 and shaded for a short time, they will soon root into 

 the mixture and be ready to grow on. These may be 

 shifted into 4-inch pots and soon will make fine little 

 plants by their rapidly creeping growth. (J. J. M. 

 Farrell.) 



INDEX. 



alatus, 2. 

 alpinus, 5. 

 brevipes, 3. 

 Burnetii, 5. 

 cardinalis, 6. 

 cupreus, 4. 

 duplex, 5. 

 glvriosus, 5. 

 glutinosus, 9. 



grandiflorus, 5. 

 Harrisonii, 8. 

 hybridus, 5. 

 Lewisii, 7. 

 luteus, 4, 5. 

 maculosus, 5. 

 maximus, 5. 

 moschatus, 8. 

 pardinus, 5. 



quinquevulnerus, 5. 

 ringens, 1. 

 rivularis, 5. 

 Roezlii, 5. 

 Smithii, 5. 

 tigridioides, 5. 

 tigrinus, 5. 

 variegatus, 5. 

 Youngeana, 5. 



A. Fls. violet, purple or lilac. 



1. ringens, Linn. Herb with perennial rootstocks, 

 branching, 1-3 ft. high, the sts. square: Ivs. oblong or 

 lanceolate, acute, serrate, clasping at base: fls. violet 

 (varying to white), about 1 in. long, the throat very 

 narrow; peduncle exceeding the calyx; calyx-teeth long 

 and awl-shaped. Wet places, Nova Scotia to Man. and 

 far S. B.M. 283. A common and rather attractive 

 native, useful for establishing and colonizing in wet 

 places. 



2. alatus, Soland. St. somewhat winged or angled: 

 Ivs. ovate to oblong, acute, dentate-serrate, petioled: 



