P U L 



The species is P. trifol'mta, Three-leaved 

 Ptelea, or Shrubby Trefoil, 



It rises with an upright woody stem ten or 

 twelve feet high, dividing upwards into many 

 branches, covered with a smooth grayish bark, 

 garnished with trifoliate leaves standing upon 

 long foot-stalks : the leaflets are ovate or ovate- 

 lanceolate, smooth, and of a bricht green on 

 their upper side, but pale on their under ; these 

 come out late in the spring, soon after which 

 the bunches of flower-buds appear, which is 

 generally in the beginning of June, the leaves 

 beuig then but small, and afterwards increase in 

 size, but are not fully grown till the flowers de- 

 cay : the flowers are produced in large bunches 

 at the end of the branches ; are of an herba- 

 ceous white colour, composed of four or five 

 short petals, ending in acute points ; fastened 

 at their base to a short calyx, cut into four seg- 

 ments almost to the bottom. It grows naturally 

 in North America. 



There is a variety with five leaves. 



Culture. — This plant may be increased by 

 seeds, cuttings and layers^. 



1 he seeds should be sow n in the early spring 

 months, as March, in pots filled with light 

 rich mould, plunging them in a moderate hot- 

 bed to bring up the plants, giving them occa- 

 sional waterings during the summer season, 

 and protecting them during the winter from 

 severe frost, planting them out in the following 

 spring in nursery-rows, to get strong for being 

 finally planted out. 



The cuttings should be made from the young 

 shoots, and planted in pots filled with light 

 earth in March, plunging them in a hot-bed to 

 strike them, but they should not have much 

 heat, due shade being given. They readily 

 strike root, and may be planted out in the fol- 

 lowing autumn. 



The layers may be laid down in the autumn, 

 choosing the young shoots for the purpose, 

 giving them a slit underneath, and then placing 

 them in the soil. They are mostly rooted in 

 the course of a twelvemonth. 



These plants are proper for shrubberies and 

 other places in pleasure-grounds, where they 

 have a very ornamental efl[ect. 



PUDDING-GRASS. See Mentha Pule- 



GIUM. 



PULMONARIA, a genus furnishing plants 

 of the hardy perennial fibrous-rooted kind. 



It belongs to the class and order Pcntandria 

 Monogynia, and ranks in the natural order of 

 AsfieriJoUce. 



The characters are : that the calyx is a one- 

 leafed perianthium, five-toothed, prismatic- 

 pentagonal, permanent: the corolla one-petal- 

 led, funnel-form : tube cylindrical, the length of 



P U L 



the calyx : border half-five-cleft, blunt, from 

 upright-spreading : throat pervious : the stamina 

 have five tilaments, in the throat, very short : 

 anthers erect, converging .- the pistillum has four 

 germs : style filiform, shorter than the calyx : 

 stigma blunt, emarginate : there is no pericar- 

 pium : calyx unchanged, fostering the seeds at 

 bottiim : the seeds four, roundish, blunt. 



The species cultivated arc : \. P. officinoUs, 

 Common Lungwort ; 2. P. a/igustijolia, Nar- 

 row-leaved Lungwort; 3. P. Firginica, Virgi- 

 nian Lungwort. 



The first has a perennial fibrous root : the 

 lower leaves rough, about six inches long, and 

 two inches and a half broad, of a dark oreen 

 on their upper side, marked with nia:;y broad 

 whitish spots, but pale and unspotted on their 

 under side : the stalks almost a fooi high, havino- 

 several smaller leaves on them stand mg alter- 

 ternately : the flowers are produced in small 

 bunches at the top of the stalks, of different 

 colours. It is a native of Europe, flowering 

 from March to May. 



The second species has leaves much narrower 

 than those of the first sort, and covered with 

 soft hairs, not spotted : the stalks rise a foot 

 high, and have narrow leaves on them, of the 

 same shape with those below, but smaller, and 

 almost embracing : the flowers are produced in 

 bunches on the top of the stalks, of a beautiful 

 blue colour. It is a native of Svveden. 



It varies with white flowers. 



The third has a perennial, thick, fleshy root, 

 sending out many small fibres : the stalks' a foot 

 and half high, dividing at the top into several 

 short branches : the leaves near the root four or 

 five inches long, two inches and a half broad, 

 sinooth, of a light green, on short footstalks; 

 those upon the stem diminish in their size up- 

 w.-irds, are of the same shape, and sessile. Every 

 small branch at the top of the stalk is termi- 

 nated by a cluster of flowers, each standing 

 upon a separate short peduncle. The most com- 

 mon colour of these flowers is blue ; but there 

 are some purple, others red, and some white. 

 They appear in April, and if they have a shady 

 situation continue in beauty great part of May. 

 It grows upon mountains in most parts of 

 North America. 



Cullure. — These plants are increased by seeds, 

 and parting the roots. 



The seeds should be sown in the spring, in a 

 bed or border of common earth, raking them 

 in. They soon come up, and in the latter end 

 of the summer they should he put out, either 

 where they are to remain, or in nursery-beds, till 

 October, when they should be planted out finally. 



The roots should be parted in the autunm, as 

 about August or September, but the sooner 



