24 



LAMIACEAE— ROSACEAE 



Lamiales Mint Order 



Lamiaceae — Mint Family 



Aromatic herbs, usually with opposite leaves and 4-angled stems; sepals 5, petals 5. stamens 

 2 or 4, ovary 4-lobed ; flower syncarpous, sympetalous, hypogynOus, mostly irregular. 



1. Corolla regular, 4-cleft 



2. Corolla irregular, 2-lipped 



a. Leaves round ; trailing herbs 



b. Leaves linear to ovate 



CI) Leaves linear, fragrant; flowers small, pinkish 



(2) Leaves lance-ovate ; flowers blue 



(3) Leaves ovate ; flowers large, white 



Mentha— Mint 



(The Latin name) 

 PI. 9, fig. G 

 Leaves lanceolate, petioled ; flowers in spikes 



( rlechoma — Gn mnd Ivy 



(Gr. g-lechon, pennyroyal) 

 Stems creeping ; leaves round ; flowers blue 



Hedeoma — Pennyroyal 



(Gr. hedyosmos, fragrant) 

 Leaves linear, entire, hispid ; flowers clustered, bluish 



Scutellaria — Skullcap 

 (L. scutella, a salver) 

 PL 9, fig. F: 1, 2 

 Leaves ovate to lanceolate ; flowers solitary, blue 



Lamium — Dead Mettle 



(Gr. lamia, throat, from the gaping corolla) 

 PI. 9, fig. H : 1, 2 

 Flowers white; leaves ovate, petioled 



Rosales Rose Order 



Mentha 



Glechoma 



Hedeoma 



Scutellaria 



Lamium 



M. piperita 



G. hederdcea 



II. hispida 



S. panuLi 



L. album 



Rosaceae — Rose Family 

 Herbs, shrubs or trees with alternate simple or compound leaves ; sepals 5, often with 5 brac- 

 teoles alternating with them, petals 5, or rarely 0, stamens 5-many, pistils 1-mar.y, simple and free 

 or with the ovaries united into a 2-10-celled compound ovary; flower apocarpous or syncarpous, 

 apopetalotis, hypogynous or mostly perigynous, regular. 

 I. Shrubs or trees 



1. Pistils several to many 



a. Pistils free 



(1) Pistils on a raised receptacle; fruit an aggregation of drupelets Rubus 



(2) Pistils in a cup- or urn-shaped receptacle 



(a) Fruit fleshy, carpels more than 5, becoming bony nutlets Rosa 



(b) Fruit dry, carpels 3-5, becoming many-seeded follicles Spiraea 



b. Pistils several, usually more or less united 



(1) Leaves compound, pinnate Sorbtts 



(2) Leaves simple 



(a) Flowers large, scarlet, white or rose color, in simple, umbel- 



like cymes or few-flowered clusters 

 x. Flowers scarlet, ovules numerous in each cell; low, spiny 



shrub Cydonia 



y. Flowers rose color, ovules 1-2 in each cell ; trees Mains 



(b) Flowers smaller, numerous, white, in racemes or compound 



cymes 

 x. Flowers in simple racemes, ovary becoming 10-celled Atttelaitchier 



