Select from the list below all the names of inflorescences that can be found in plants belonging to the same family as corn (maize).

Solution:

Corn (Zea mays) belongs to the grass family, Poaceae. We need to identify inflorescences common within this family.

• 1) umbel: Typically found in plants like dill or parsley (Apiaceae family), not grasses.
• 2) capitulum (head): Characteristic of the Asteraceae family (e.g., sunflower, daisy), not grasses.
• 3) spike: Grasses often have flowers arranged in a spike, where sessile flowers are directly attached to the rachis. Corn has a male spike (tassel). This is a common grass inflorescence.
• 4) head: Similar to capitulum, found in Asteraceae.
• 5) corymb of capitula: Complex inflorescence, not typical for grasses.
• 6) raceme: While some grasses have a raceme-like arrangement, the term 'spike' is more specific and accurate for many grass inflorescences like corn's tassel. However, a compound inflorescence can be made of spikes or racemes. Corn's female inflorescence (ear) is a modified spike with sessile spikelets.
• 7) compound spike: A spike where the main axis bears secondary spikes (spikelets). This accurately describes the structure of a corn ear (female inflorescence) and the overall tassel (male inflorescence) which is a panicle of spikes.

Corn's tassel is a panicle (a type of compound inflorescence), and its ear is a modified spike (or a compound spike of spikelets). Therefore, inflorescences that fit within the Poaceae family, and can be related to corn's structures, are the spike and the compound spike (or related structures like panicle).

Considering the options provided:

• A simple spike (3) is a fundamental grass inflorescence.
• A compound spike (7) describes the arrangement in corn's ear and tassel more accurately as it consists of spikelets.
• A raceme (6) is also a common inflorescence type in grasses, and the arrangement of spikelets in corn's ear can be considered a modified spike or raceme of spikelets. Given that a spike is part of a compound structure in corn, and a compound spike is explicitly listed, these are the most appropriate choices. The term 'panicle' (which is a compound raceme) is often used for the corn tassel, and a panicle can be composed of spikes or racemes. Option 7 (compound spike) best fits the description of the corn ear. Option 3 (simple spike) is also a fundamental grass inflorescence type. Option 6 (raceme) is also found in grasses.

Let's re-evaluate based on typical grass inflorescences and corn specifically:

Corn's tassel is a panicle (a type of compound inflorescence, which is essentially a branched raceme). Corn's ear is a spike of spikelets, sometimes described as a compound spike.

From the given options:

• 3) простой колос (simple spike) - This applies to the arrangement of spikelets on the ear of corn.
• 6) кисть (raceme) - Panicles are branched racemes, so this is related.
• 7) сложный колос (compound spike) - This also accurately describes the ear of corn, where spikelets are arranged along the rachis.

Given that corn itself has a spike-like structure (ear) and a panicle (tassel), the most fitting options are those that represent spike-like or compound inflorescences found in grasses.

The common inflorescences in grasses include spike, raceme, panicle (compound raceme), and sometimes solitary spikelets.

For corn:

• Male inflorescence (tassel): Panicle (a compound raceme)
• Female inflorescence (ear): A spike of sessile spikelets, often described as a compound spike.

Looking at the options:

• 3) простой колос (simple spike): While the ear has spikelets, it's more complex than a simple spike where individual flowers are attached. However, the basic structure is spike-like.
• 6) кисть (raceme): A raceme has flowers on pedicels. Corn spikelets are sessile. So, raceme is less fitting than spike.
• 7) сложный колос (compound spike): This is the most accurate description for the corn ear, where spikelets are arranged along a central axis.

Considering the options that best represent inflorescences in the grass family (Poaceae), and specifically corn:

3. простой колос (simple spike) and 7. сложный колос (compound spike) are the most appropriate. Some sources might also consider the tassel as a type of panicle, which is a branched raceme, making 'raceme' (6) somewhat relevant in a broader sense of branched inflorescences in grasses.

However, usually, the ear of corn is categorized as a spike or compound spike. The tassel is a panicle.

Let's assume the question asks for inflorescences that are *types* of structures found in grasses, and are represented in corn. Both spike and compound spike are highly relevant.

Based on typical botanical classifications of grass inflorescences and corn's specific structures:

1. простой колос (simple spike): This is a fundamental grass inflorescence. The arrangement of spikelets on the corn ear is a modification of this. It is a valid type of inflorescence in the family.

2. сложный колос (compound spike): This is a very accurate description of the corn ear, where the main axis bears spikelets. This is a characteristic inflorescence type for corn and related grasses.

Other options are less fitting:

• Зонтик (umbel) and Корзинка (capitulum/head) belong to different families.
• Головка (head) is also characteristic of Asteraceae.
• Щиток из корзинок (corymb of capitula) is complex and not typical for grasses.
• Кисть (raceme) is possible in grasses, but 'колос' (spike) and 'сложный колос' (compound spike) are more definitive for corn.

Therefore, the most fitting answers are 3 and 7.

Some might argue that the tassel is a panicle, which is a type of compound raceme. If 'кисть' (raceme) is considered as a component or related structure to a panicle, it could be included. However, 'колос' and 'сложный колос' are more direct descriptions related to corn's morphology.

Given the options, and focusing on the most direct representations of grass inflorescences that are clearly visible in corn:

3. простой колос (as a basic type found in the family, and relatable to the ear's structure)

7. сложный колос (as the most precise description of the corn ear)

If we consider the tassel, it's a panicle, which is a compound raceme. So, 'кисть' (raceme) is related. However, 'колос' is more specific to the way spikelets are attached in corn's ear.

Let's select the most direct and accurate representations of grass inflorescences relevant to corn.

• 3. простой колос
• 7. сложный колос

The question asks for names of inflorescences that *may be* found in plants of the same family. Both spike and compound spike are types of inflorescences found in the Poaceae family, and are directly represented in corn.